Home / 28,054.38-38,714.85-15,479.16

Finding the Fourth Proportional to 28,054.38, 38,714.85 and 15,479.16

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Solution

The fourth proportional to 28,054.38, 38,714.85 and 15,479.16 is: 21,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.38 : 38,714.85 = 15,479.16 : x
  2. Step 2: Convert to fraction form
    28,054.38/38,714.85 = 15,479.16/x
  3. Step 3: Cross multiply
    28,054.38x = 38,714.85 × 15,479.16
  4. Step 4: Simplify right side
    28,054.38x = 599,273,357.53
  5. Step 5: Solve for x
    x = 599,273,357.53/28,054.38
  6. Step 6: Final answer
    x = 21,361.13

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Half scale
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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.