Home / 42,807.13-64,239.85-15,105.13

Finding the Fourth Proportional to 42,807.13, 64,239.85 and 15,105.13

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Solution

The fourth proportional to 42,807.13, 64,239.85 and 15,105.13 is: 22,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,807.13 : 64,239.85 = 15,105.13 : x
  2. Step 2: Convert to fraction form
    42,807.13/64,239.85 = 15,105.13/x
  3. Step 3: Cross multiply
    42,807.13x = 64,239.85 × 15,105.13
  4. Step 4: Simplify right side
    42,807.13x = 970,351,285.43
  5. Step 5: Solve for x
    x = 970,351,285.43/42,807.13
  6. Step 6: Final answer
    x = 22,667.98

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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.