Home / 31,586.83-47,380.01-12,862.47

Finding the Fourth Proportional to 31,586.83, 47,380.01 and 12,862.47

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Solution

The fourth proportional to 31,586.83, 47,380.01 and 12,862.47 is: 19,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,586.83 : 47,380.01 = 12,862.47 : x
  2. Step 2: Convert to fraction form
    31,586.83/47,380.01 = 12,862.47/x
  3. Step 3: Cross multiply
    31,586.83x = 47,380.01 × 12,862.47
  4. Step 4: Simplify right side
    31,586.83x = 609,423,752.48
  5. Step 5: Solve for x
    x = 609,423,752.48/31,586.83
  6. Step 6: Final answer
    x = 19,293.60

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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.