Home / 31,895.04-47,823.12-12,152.56

Finding the Fourth Proportional to 31,895.04, 47,823.12 and 12,152.56

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Solution

The fourth proportional to 31,895.04, 47,823.12 and 12,152.56 is: 18,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,895.04 : 47,823.12 = 12,152.56 : x
  2. Step 2: Convert to fraction form
    31,895.04/47,823.12 = 12,152.56/x
  3. Step 3: Cross multiply
    31,895.04x = 47,823.12 × 12,152.56
  4. Step 4: Simplify right side
    31,895.04x = 581,173,335.19
  5. Step 5: Solve for x
    x = 581,173,335.19/31,895.04
  6. Step 6: Final answer
    x = 18,221.43

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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.