Home / 27,551.64-38,021.45-15,615.18

Finding the Fourth Proportional to 27,551.64, 38,021.45 and 15,615.18

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Solution

The fourth proportional to 27,551.64, 38,021.45 and 15,615.18 is: 21,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,551.64 : 38,021.45 = 15,615.18 : x
  2. Step 2: Convert to fraction form
    27,551.64/38,021.45 = 15,615.18/x
  3. Step 3: Cross multiply
    27,551.64x = 38,021.45 × 15,615.18
  4. Step 4: Simplify right side
    27,551.64x = 593,711,795.37
  5. Step 5: Solve for x
    x = 593,711,795.37/27,551.64
  6. Step 6: Final answer
    x = 21,549.05

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Half scale
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Double scale
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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.