Home / 39,298.72-54,232.20-21,393.70

Finding the Fourth Proportional to 39,298.72, 54,232.20 and 21,393.70

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Solution

The fourth proportional to 39,298.72, 54,232.20 and 21,393.70 is: 29,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,298.72 : 54,232.20 = 21,393.70 : x
  2. Step 2: Convert to fraction form
    39,298.72/54,232.20 = 21,393.70/x
  3. Step 3: Cross multiply
    39,298.72x = 54,232.20 × 21,393.70
  4. Step 4: Simplify right side
    39,298.72x = 1,160,227,417.14
  5. Step 5: Solve for x
    x = 1,160,227,417.14/39,298.72
  6. Step 6: Final answer
    x = 29,523.29

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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.