Home / 39,372.95-54,335.81-21,469.12

Finding the Fourth Proportional to 39,372.95, 54,335.81 and 21,469.12

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Solution

The fourth proportional to 39,372.95, 54,335.81 and 21,469.12 is: 29,628.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,372.95 : 54,335.81 = 21,469.12 : x
  2. Step 2: Convert to fraction form
    39,372.95/54,335.81 = 21,469.12/x
  3. Step 3: Cross multiply
    39,372.95x = 54,335.81 × 21,469.12
  4. Step 4: Simplify right side
    39,372.95x = 1,166,541,943.02
  5. Step 5: Solve for x
    x = 1,166,541,943.02/39,372.95
  6. Step 6: Final answer
    x = 29,628.00

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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.