Home / 47,714.64-71,567.10-12,657.84

Finding the Fourth Proportional to 47,714.64, 71,567.10 and 12,657.84

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Solution

The fourth proportional to 47,714.64, 71,567.10 and 12,657.84 is: 18,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,714.64 : 71,567.10 = 12,657.84 : x
  2. Step 2: Convert to fraction form
    47,714.64/71,567.10 = 12,657.84/x
  3. Step 3: Cross multiply
    47,714.64x = 71,567.10 × 12,657.84
  4. Step 4: Simplify right side
    47,714.64x = 905,884,901.06
  5. Step 5: Solve for x
    x = 905,884,901.06/47,714.64
  6. Step 6: Final answer
    x = 18,985.47

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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.