Home / 38,979.20-58,477.50-18,191.36

Finding the Fourth Proportional to 38,979.20, 58,477.50 and 18,191.36

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Solution

The fourth proportional to 38,979.20, 58,477.50 and 18,191.36 is: 27,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,979.20 : 58,477.50 = 18,191.36 : x
  2. Step 2: Convert to fraction form
    38,979.20/58,477.50 = 18,191.36/x
  3. Step 3: Cross multiply
    38,979.20x = 58,477.50 × 18,191.36
  4. Step 4: Simplify right side
    38,979.20x = 1,063,785,254.40
  5. Step 5: Solve for x
    x = 1,063,785,254.40/38,979.20
  6. Step 6: Final answer
    x = 27,291.10

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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.