Home / 39,713.32-54,805.35-21,564.82

Finding the Fourth Proportional to 39,713.32, 54,805.35 and 21,564.82

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Solution

The fourth proportional to 39,713.32, 54,805.35 and 21,564.82 is: 29,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,713.32 : 54,805.35 = 21,564.82 : x
  2. Step 2: Convert to fraction form
    39,713.32/54,805.35 = 21,564.82/x
  3. Step 3: Cross multiply
    39,713.32x = 54,805.35 × 21,564.82
  4. Step 4: Simplify right side
    39,713.32x = 1,181,867,507.79
  5. Step 5: Solve for x
    x = 1,181,867,507.79/39,713.32
  6. Step 6: Final answer
    x = 29,759.98

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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.