Home / 38,110.70-57,230.85-28,261.10

Finding the Fourth Proportional to 38,110.70, 57,230.85 and 28,261.10

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Solution

The fourth proportional to 38,110.70, 57,230.85 and 28,261.10 is: 42,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,110.70 : 57,230.85 = 28,261.10 : x
  2. Step 2: Convert to fraction form
    38,110.70/57,230.85 = 28,261.10/x
  3. Step 3: Cross multiply
    38,110.70x = 57,230.85 × 28,261.10
  4. Step 4: Simplify right side
    38,110.70x = 1,617,406,774.94
  5. Step 5: Solve for x
    x = 1,617,406,774.94/38,110.70
  6. Step 6: Final answer
    x = 42,439.70

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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.