Home / 38,079.78-52,550.15-20,852.06

Finding the Fourth Proportional to 38,079.78, 52,550.15 and 20,852.06

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Solution

The fourth proportional to 38,079.78, 52,550.15 and 20,852.06 is: 28,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.78 : 52,550.15 = 20,852.06 : x
  2. Step 2: Convert to fraction form
    38,079.78/52,550.15 = 20,852.06/x
  3. Step 3: Cross multiply
    38,079.78x = 52,550.15 × 20,852.06
  4. Step 4: Simplify right side
    38,079.78x = 1,095,779,017.30
  5. Step 5: Solve for x
    x = 1,095,779,017.30/38,079.78
  6. Step 6: Final answer
    x = 28,775.87

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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.