Home / 31,818.72-43,909.20-17,671.08

Finding the Fourth Proportional to 31,818.72, 43,909.20 and 17,671.08

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Solution

The fourth proportional to 31,818.72, 43,909.20 and 17,671.08 is: 24,385.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,818.72 : 43,909.20 = 17,671.08 : x
  2. Step 2: Convert to fraction form
    31,818.72/43,909.20 = 17,671.08/x
  3. Step 3: Cross multiply
    31,818.72x = 43,909.20 × 17,671.08
  4. Step 4: Simplify right side
    31,818.72x = 775,922,985.94
  5. Step 5: Solve for x
    x = 775,922,985.94/31,818.72
  6. Step 6: Final answer
    x = 24,385.74

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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.