Home / 39,311.17-54,250.38-21,407.15

Finding the Fourth Proportional to 39,311.17, 54,250.38 and 21,407.15

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Solution

The fourth proportional to 39,311.17, 54,250.38 and 21,407.15 is: 29,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,311.17 : 54,250.38 = 21,407.15 : x
  2. Step 2: Convert to fraction form
    39,311.17/54,250.38 = 21,407.15/x
  3. Step 3: Cross multiply
    39,311.17x = 54,250.38 × 21,407.15
  4. Step 4: Simplify right side
    39,311.17x = 1,161,346,157.84
  5. Step 5: Solve for x
    x = 1,161,346,157.84/39,311.17
  6. Step 6: Final answer
    x = 29,542.40

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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.