Home / 39,155.95-54,035.25-21,250.97

Finding the Fourth Proportional to 39,155.95, 54,035.25 and 21,250.97

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Solution

The fourth proportional to 39,155.95, 54,035.25 and 21,250.97 is: 29,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.95 : 54,035.25 = 21,250.97 : x
  2. Step 2: Convert to fraction form
    39,155.95/54,035.25 = 21,250.97/x
  3. Step 3: Cross multiply
    39,155.95x = 54,035.25 × 21,250.97
  4. Step 4: Simplify right side
    39,155.95x = 1,148,301,206.52
  5. Step 5: Solve for x
    x = 1,148,301,206.52/39,155.95
  6. Step 6: Final answer
    x = 29,326.35

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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.