Home / 31,818.40-43,909.44-17,670.88

Finding the Fourth Proportional to 31,818.40, 43,909.44 and 17,670.88

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Solution

The fourth proportional to 31,818.40, 43,909.44 and 17,670.88 is: 24,385.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.40 : 43,909.44 = 17,670.88 : x
  2. Step 2: Convert to fraction form
    31,818.40/43,909.44 = 17,670.88/x
  3. Step 3: Cross multiply
    31,818.40x = 43,909.44 × 17,670.88
  4. Step 4: Simplify right side
    31,818.40x = 775,918,445.11
  5. Step 5: Solve for x
    x = 775,918,445.11/31,818.40
  6. Step 6: Final answer
    x = 24,385.84

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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.