Home / 38,513.10-57,769.65-18,830.10

Finding the Fourth Proportional to 38,513.10, 57,769.65 and 18,830.10

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Solution

The fourth proportional to 38,513.10, 57,769.65 and 18,830.10 is: 28,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.10 : 57,769.65 = 18,830.10 : x
  2. Step 2: Convert to fraction form
    38,513.10/57,769.65 = 18,830.10/x
  3. Step 3: Cross multiply
    38,513.10x = 57,769.65 × 18,830.10
  4. Step 4: Simplify right side
    38,513.10x = 1,087,808,286.47
  5. Step 5: Solve for x
    x = 1,087,808,286.47/38,513.10
  6. Step 6: Final answer
    x = 28,245.15

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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.