Home / 47,714.12-71,572.80-12,657.32

Finding the Fourth Proportional to 47,714.12, 71,572.80 and 12,657.32

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Solution

The fourth proportional to 47,714.12, 71,572.80 and 12,657.32 is: 18,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,714.12 : 71,572.80 = 12,657.32 : x
  2. Step 2: Convert to fraction form
    47,714.12/71,572.80 = 12,657.32/x
  3. Step 3: Cross multiply
    47,714.12x = 71,572.80 × 12,657.32
  4. Step 4: Simplify right side
    47,714.12x = 905,919,832.90
  5. Step 5: Solve for x
    x = 905,919,832.90/47,714.12
  6. Step 6: Final answer
    x = 18,986.41

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1.5x scale

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.