Home / 39,307.07-54,242.04-21,402.14

Finding the Fourth Proportional to 39,307.07, 54,242.04 and 21,402.14

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Solution

The fourth proportional to 39,307.07, 54,242.04 and 21,402.14 is: 29,534.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,307.07 : 54,242.04 = 21,402.14 : x
  2. Step 2: Convert to fraction form
    39,307.07/54,242.04 = 21,402.14/x
  3. Step 3: Cross multiply
    39,307.07x = 54,242.04 × 21,402.14
  4. Step 4: Simplify right side
    39,307.07x = 1,160,895,733.97
  5. Step 5: Solve for x
    x = 1,160,895,733.97/39,307.07
  6. Step 6: Final answer
    x = 29,534.02

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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.