Home / 39,101.11-58,655.76-12,807.90

Finding the Fourth Proportional to 39,101.11, 58,655.76 and 12,807.90

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Solution

The fourth proportional to 39,101.11, 58,655.76 and 12,807.90 is: 19,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101.11 : 58,655.76 = 12,807.90 : x
  2. Step 2: Convert to fraction form
    39,101.11/58,655.76 = 12,807.90/x
  3. Step 3: Cross multiply
    39,101.11x = 58,655.76 × 12,807.90
  4. Step 4: Simplify right side
    39,101.11x = 751,257,108.50
  5. Step 5: Solve for x
    x = 751,257,108.50/39,101.11
  6. Step 6: Final answer
    x = 19,213.19

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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.