Home / 21,768.35-30,031.65-14,212.26

Finding the Fourth Proportional to 21,768.35, 30,031.65 and 14,212.26

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Solution

The fourth proportional to 21,768.35, 30,031.65 and 14,212.26 is: 19,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.35 : 30,031.65 = 14,212.26 : x
  2. Step 2: Convert to fraction form
    21,768.35/30,031.65 = 14,212.26/x
  3. Step 3: Cross multiply
    21,768.35x = 30,031.65 × 14,212.26
  4. Step 4: Simplify right side
    21,768.35x = 426,817,618.03
  5. Step 5: Solve for x
    x = 426,817,618.03/21,768.35
  6. Step 6: Final answer
    x = 19,607.26

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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.