Home / 39,443.02-54,431.67-21,537.70

Finding the Fourth Proportional to 39,443.02, 54,431.67 and 21,537.70

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Solution

The fourth proportional to 39,443.02, 54,431.67 and 21,537.70 is: 29,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.02 : 54,431.67 = 21,537.70 : x
  2. Step 2: Convert to fraction form
    39,443.02/54,431.67 = 21,537.70/x
  3. Step 3: Cross multiply
    39,443.02x = 54,431.67 × 21,537.70
  4. Step 4: Simplify right side
    39,443.02x = 1,172,332,978.96
  5. Step 5: Solve for x
    x = 1,172,332,978.96/39,443.02
  6. Step 6: Final answer
    x = 29,722.19

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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.