Home / 31,397.22-43,308.98-18,641.76

Finding the Fourth Proportional to 31,397.22, 43,308.98 and 18,641.76

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Solution

The fourth proportional to 31,397.22, 43,308.98 and 18,641.76 is: 25,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,397.22 : 43,308.98 = 18,641.76 : x
  2. Step 2: Convert to fraction form
    31,397.22/43,308.98 = 18,641.76/x
  3. Step 3: Cross multiply
    31,397.22x = 43,308.98 × 18,641.76
  4. Step 4: Simplify right side
    31,397.22x = 807,355,611.00
  5. Step 5: Solve for x
    x = 807,355,611.00/31,397.22
  6. Step 6: Final answer
    x = 25,714.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.