Home / 28,055.16-38,714.76-16,115.76

Finding the Fourth Proportional to 28,055.16, 38,714.76 and 16,115.76

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Solution

The fourth proportional to 28,055.16, 38,714.76 and 16,115.76 is: 22,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.16 : 38,714.76 = 16,115.76 : x
  2. Step 2: Convert to fraction form
    28,055.16/38,714.76 = 16,115.76/x
  3. Step 3: Cross multiply
    28,055.16x = 38,714.76 × 16,115.76
  4. Step 4: Simplify right side
    28,055.16x = 623,917,780.62
  5. Step 5: Solve for x
    x = 623,917,780.62/28,055.16
  6. Step 6: Final answer
    x = 22,238.97

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Half scale
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Double 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.