Home / 31,862.16-47,770.48-14,985.72

Finding the Fourth Proportional to 31,862.16, 47,770.48 and 14,985.72

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Solution

The fourth proportional to 31,862.16, 47,770.48 and 14,985.72 is: 22,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.16 : 47,770.48 = 14,985.72 : x
  2. Step 2: Convert to fraction form
    31,862.16/47,770.48 = 14,985.72/x
  3. Step 3: Cross multiply
    31,862.16x = 47,770.48 × 14,985.72
  4. Step 4: Simplify right side
    31,862.16x = 715,875,037.55
  5. Step 5: Solve for x
    x = 715,875,037.55/31,862.16
  6. Step 6: Final answer
    x = 22,467.88

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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.