Home / 23,479.87-32,402.22-12,869.47

Finding the Fourth Proportional to 23,479.87, 32,402.22 and 12,869.47

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Solution

The fourth proportional to 23,479.87, 32,402.22 and 12,869.47 is: 17,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,479.87 : 32,402.22 = 12,869.47 : x
  2. Step 2: Convert to fraction form
    23,479.87/32,402.22 = 12,869.47/x
  3. Step 3: Cross multiply
    23,479.87x = 32,402.22 × 12,869.47
  4. Step 4: Simplify right side
    23,479.87x = 416,999,398.22
  5. Step 5: Solve for x
    x = 416,999,398.22/23,479.87
  6. Step 6: Final answer
    x = 17,759.87

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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.