Home / 22,031.07-30,416.63-15,144.09

Finding the Fourth Proportional to 22,031.07, 30,416.63 and 15,144.09

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Solution

The fourth proportional to 22,031.07, 30,416.63 and 15,144.09 is: 20,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.07 : 30,416.63 = 15,144.09 : x
  2. Step 2: Convert to fraction form
    22,031.07/30,416.63 = 15,144.09/x
  3. Step 3: Cross multiply
    22,031.07x = 30,416.63 × 15,144.09
  4. Step 4: Simplify right side
    22,031.07x = 460,632,182.22
  5. Step 5: Solve for x
    x = 460,632,182.22/22,031.07
  6. Step 6: Final answer
    x = 20,908.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.