Home / 28,479.43-42,714.55-9,758.71

Finding the Fourth Proportional to 28,479.43, 42,714.55 and 9,758.71

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Solution

The fourth proportional to 28,479.43, 42,714.55 and 9,758.71 is: 14,636.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.43 : 42,714.55 = 9,758.71 : x
  2. Step 2: Convert to fraction form
    28,479.43/42,714.55 = 9,758.71/x
  3. Step 3: Cross multiply
    28,479.43x = 42,714.55 × 9,758.71
  4. Step 4: Simplify right side
    28,479.43x = 416,838,906.23
  5. Step 5: Solve for x
    x = 416,838,906.23/28,479.43
  6. Step 6: Final answer
    x = 14,636.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.