Home / 38,666.18-57,989.82-12,365.48

Finding the Fourth Proportional to 38,666.18, 57,989.82 and 12,365.48

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Solution

The fourth proportional to 38,666.18, 57,989.82 and 12,365.48 is: 18,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.18 : 57,989.82 = 12,365.48 : x
  2. Step 2: Convert to fraction form
    38,666.18/57,989.82 = 12,365.48/x
  3. Step 3: Cross multiply
    38,666.18x = 57,989.82 × 12,365.48
  4. Step 4: Simplify right side
    38,666.18x = 717,071,959.41
  5. Step 5: Solve for x
    x = 717,071,959.41/38,666.18
  6. Step 6: Final answer
    x = 18,545.20

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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.