Home / 38,952.12-58,430.12-18,979.96

Finding the Fourth Proportional to 38,952.12, 58,430.12 and 18,979.96

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Solution

The fourth proportional to 38,952.12, 58,430.12 and 18,979.96 is: 28,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,952.12 : 58,430.12 = 18,979.96 : x
  2. Step 2: Convert to fraction form
    38,952.12/58,430.12 = 18,979.96/x
  3. Step 3: Cross multiply
    38,952.12x = 58,430.12 × 18,979.96
  4. Step 4: Simplify right side
    38,952.12x = 1,109,001,340.40
  5. Step 5: Solve for x
    x = 1,109,001,340.40/38,952.12
  6. Step 6: Final answer
    x = 28,470.89

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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.