Home / 38,581.65-57,876.63-12,280.24

Finding the Fourth Proportional to 38,581.65, 57,876.63 and 12,280.24

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Solution

The fourth proportional to 38,581.65, 57,876.63 and 12,280.24 is: 18,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.65 : 57,876.63 = 12,280.24 : x
  2. Step 2: Convert to fraction form
    38,581.65/57,876.63 = 12,280.24/x
  3. Step 3: Cross multiply
    38,581.65x = 57,876.63 × 12,280.24
  4. Step 4: Simplify right side
    38,581.65x = 710,738,933.09
  5. Step 5: Solve for x
    x = 710,738,933.09/38,581.65
  6. Step 6: Final answer
    x = 18,421.68

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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.