Home / 39,331.72-58,983.54-12,672.28

Finding the Fourth Proportional to 39,331.72, 58,983.54 and 12,672.28

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Solution

The fourth proportional to 39,331.72, 58,983.54 and 12,672.28 is: 19,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.72 : 58,983.54 = 12,672.28 : x
  2. Step 2: Convert to fraction form
    39,331.72/58,983.54 = 12,672.28/x
  3. Step 3: Cross multiply
    39,331.72x = 58,983.54 × 12,672.28
  4. Step 4: Simplify right side
    39,331.72x = 747,455,934.27
  5. Step 5: Solve for x
    x = 747,455,934.27/39,331.72
  6. Step 6: Final answer
    x = 19,003.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.