Home / 31,830.95-47,756.76-15,188.82

Finding the Fourth Proportional to 31,830.95, 47,756.76 and 15,188.82

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Solution

The fourth proportional to 31,830.95, 47,756.76 and 15,188.82 is: 22,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,830.95 : 47,756.76 = 15,188.82 : x
  2. Step 2: Convert to fraction form
    31,830.95/47,756.76 = 15,188.82/x
  3. Step 3: Cross multiply
    31,830.95x = 47,756.76 × 15,188.82
  4. Step 4: Simplify right side
    31,830.95x = 725,368,723.53
  5. Step 5: Solve for x
    x = 725,368,723.53/31,830.95
  6. Step 6: Final answer
    x = 22,788.16

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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.