Home / 45,298.65-67,921.38-13,699.20

Finding the Fourth Proportional to 45,298.65, 67,921.38 and 13,699.20

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Solution

The fourth proportional to 45,298.65, 67,921.38 and 13,699.20 is: 20,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,298.65 : 67,921.38 = 13,699.20 : x
  2. Step 2: Convert to fraction form
    45,298.65/67,921.38 = 13,699.20/x
  3. Step 3: Cross multiply
    45,298.65x = 67,921.38 × 13,699.20
  4. Step 4: Simplify right side
    45,298.65x = 930,468,568.90
  5. Step 5: Solve for x
    x = 930,468,568.90/45,298.65
  6. Step 6: Final answer
    x = 20,540.76

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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.