Home / 22,720.01-31,355.13-13,768.39

Finding the Fourth Proportional to 22,720.01, 31,355.13 and 13,768.39

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Solution

The fourth proportional to 22,720.01, 31,355.13 and 13,768.39 is: 19,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.01 : 31,355.13 = 13,768.39 : x
  2. Step 2: Convert to fraction form
    22,720.01/31,355.13 = 13,768.39/x
  3. Step 3: Cross multiply
    22,720.01x = 31,355.13 × 13,768.39
  4. Step 4: Simplify right side
    22,720.01x = 431,709,528.32
  5. Step 5: Solve for x
    x = 431,709,528.32/22,720.01
  6. Step 6: Final answer
    x = 19,001.30

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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.