Home / 31,412.78-47,115.12-26,180.48

Finding the Fourth Proportional to 31,412.78, 47,115.12 and 26,180.48

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Solution

The fourth proportional to 31,412.78, 47,115.12 and 26,180.48 is: 39,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,412.78 : 47,115.12 = 26,180.48 : x
  2. Step 2: Convert to fraction form
    31,412.78/47,115.12 = 26,180.48/x
  3. Step 3: Cross multiply
    31,412.78x = 47,115.12 × 26,180.48
  4. Step 4: Simplify right side
    31,412.78x = 1,233,496,456.86
  5. Step 5: Solve for x
    x = 1,233,496,456.86/31,412.78
  6. Step 6: Final answer
    x = 39,267.34

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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.