Home / 38,478.16-57,711.70-10,399.82

Finding the Fourth Proportional to 38,478.16, 57,711.70 and 10,399.82

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Solution

The fourth proportional to 38,478.16, 57,711.70 and 10,399.82 is: 15,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.16 : 57,711.70 = 10,399.82 : x
  2. Step 2: Convert to fraction form
    38,478.16/57,711.70 = 10,399.82/x
  3. Step 3: Cross multiply
    38,478.16x = 57,711.70 × 10,399.82
  4. Step 4: Simplify right side
    38,478.16x = 600,191,291.89
  5. Step 5: Solve for x
    x = 600,191,291.89/38,478.16
  6. Step 6: Final answer
    x = 15,598.23

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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.