Home / 39,153.74-54,032.57-21,248.90

Finding the Fourth Proportional to 39,153.74, 54,032.57 and 21,248.90

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Solution

The fourth proportional to 39,153.74, 54,032.57 and 21,248.90 is: 29,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.74 : 54,032.57 = 21,248.90 : x
  2. Step 2: Convert to fraction form
    39,153.74/54,032.57 = 21,248.90/x
  3. Step 3: Cross multiply
    39,153.74x = 54,032.57 × 21,248.90
  4. Step 4: Simplify right side
    39,153.74x = 1,148,132,570.43
  5. Step 5: Solve for x
    x = 1,148,132,570.43/39,153.74
  6. Step 6: Final answer
    x = 29,323.70

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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.