Home / 31,592.18-47,387.79-9,405.69

Finding the Fourth Proportional to 31,592.18, 47,387.79 and 9,405.69

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Solution

The fourth proportional to 31,592.18, 47,387.79 and 9,405.69 is: 14,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,592.18 : 47,387.79 = 9,405.69 : x
  2. Step 2: Convert to fraction form
    31,592.18/47,387.79 = 9,405.69/x
  3. Step 3: Cross multiply
    31,592.18x = 47,387.79 × 9,405.69
  4. Step 4: Simplify right side
    31,592.18x = 445,714,862.53
  5. Step 5: Solve for x
    x = 445,714,862.53/31,592.18
  6. Step 6: Final answer
    x = 14,108.39

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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.