Home / 39,239.10-54,149.85-21,333.99

Finding the Fourth Proportional to 39,239.10, 54,149.85 and 21,333.99

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Solution

The fourth proportional to 39,239.10, 54,149.85 and 21,333.99 is: 29,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,239.10 : 54,149.85 = 21,333.99 : x
  2. Step 2: Convert to fraction form
    39,239.10/54,149.85 = 21,333.99/x
  3. Step 3: Cross multiply
    39,239.10x = 54,149.85 × 21,333.99
  4. Step 4: Simplify right side
    39,239.10x = 1,155,232,358.40
  5. Step 5: Solve for x
    x = 1,155,232,358.40/39,239.10
  6. Step 6: Final answer
    x = 29,440.85

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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.