Home / 39,558.71-54,588.90-21,650.25

Finding the Fourth Proportional to 39,558.71, 54,588.90 and 21,650.25

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Solution

The fourth proportional to 39,558.71, 54,588.90 and 21,650.25 is: 29,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.71 : 54,588.90 = 21,650.25 : x
  2. Step 2: Convert to fraction form
    39,558.71/54,588.90 = 21,650.25/x
  3. Step 3: Cross multiply
    39,558.71x = 54,588.90 × 21,650.25
  4. Step 4: Simplify right side
    39,558.71x = 1,181,863,332.23
  5. Step 5: Solve for x
    x = 1,181,863,332.23/39,558.71
  6. Step 6: Final answer
    x = 29,876.19

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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.