Home / 28,010.10-42,015.15-18,095.70

Finding the Fourth Proportional to 28,010.10, 42,015.15 and 18,095.70

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Solution

The fourth proportional to 28,010.10, 42,015.15 and 18,095.70 is: 27,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.10 : 42,015.15 = 18,095.70 : x
  2. Step 2: Convert to fraction form
    28,010.10/42,015.15 = 18,095.70/x
  3. Step 3: Cross multiply
    28,010.10x = 42,015.15 × 18,095.70
  4. Step 4: Simplify right side
    28,010.10x = 760,293,549.86
  5. Step 5: Solve for x
    x = 760,293,549.86/28,010.10
  6. Step 6: Final answer
    x = 27,143.55

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Similar ratio
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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.