Home / 31,355.52-47,032.77-12,635.11

Finding the Fourth Proportional to 31,355.52, 47,032.77 and 12,635.11

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Solution

The fourth proportional to 31,355.52, 47,032.77 and 12,635.11 is: 18,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.52 : 47,032.77 = 12,635.11 : x
  2. Step 2: Convert to fraction form
    31,355.52/47,032.77 = 12,635.11/x
  3. Step 3: Cross multiply
    31,355.52x = 47,032.77 × 12,635.11
  4. Step 4: Simplify right side
    31,355.52x = 594,264,222.55
  5. Step 5: Solve for x
    x = 594,264,222.55/31,355.52
  6. Step 6: Final answer
    x = 18,952.46

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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.