Home / 39,307.10-54,244.94-21,402.42

Finding the Fourth Proportional to 39,307.10, 54,244.94 and 21,402.42

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Solution

The fourth proportional to 39,307.10, 54,244.94 and 21,402.42 is: 29,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,307.10 : 54,244.94 = 21,402.42 : x
  2. Step 2: Convert to fraction form
    39,307.10/54,244.94 = 21,402.42/x
  3. Step 3: Cross multiply
    39,307.10x = 54,244.94 × 21,402.42
  4. Step 4: Simplify right side
    39,307.10x = 1,160,972,988.75
  5. Step 5: Solve for x
    x = 1,160,972,988.75/39,307.10
  6. Step 6: Final answer
    x = 29,535.96

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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.