Home / 22,307.48-30,785.32-13,353.28

Finding the Fourth Proportional to 22,307.48, 30,785.32 and 13,353.28

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Solution

The fourth proportional to 22,307.48, 30,785.32 and 13,353.28 is: 18,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.48 : 30,785.32 = 13,353.28 : x
  2. Step 2: Convert to fraction form
    22,307.48/30,785.32 = 13,353.28/x
  3. Step 3: Cross multiply
    22,307.48x = 30,785.32 × 13,353.28
  4. Step 4: Simplify right side
    22,307.48x = 411,084,997.85
  5. Step 5: Solve for x
    x = 411,084,997.85/22,307.48
  6. Step 6: Final answer
    x = 18,428.12

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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.