Home / 31,909.92-44,031.88-18,479.35

Finding the Fourth Proportional to 31,909.92, 44,031.88 and 18,479.35

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Solution

The fourth proportional to 31,909.92, 44,031.88 and 18,479.35 is: 25,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.92 : 44,031.88 = 18,479.35 : x
  2. Step 2: Convert to fraction form
    31,909.92/44,031.88 = 18,479.35/x
  3. Step 3: Cross multiply
    31,909.92x = 44,031.88 × 18,479.35
  4. Step 4: Simplify right side
    31,909.92x = 813,680,521.68
  5. Step 5: Solve for x
    x = 813,680,521.68/31,909.92
  6. Step 6: Final answer
    x = 25,499.30

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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.