Home / 38,302.30-57,449.40-12,005.65

Finding the Fourth Proportional to 38,302.30, 57,449.40 and 12,005.65

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Solution

The fourth proportional to 38,302.30, 57,449.40 and 12,005.65 is: 18,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,302.30 : 57,449.40 = 12,005.65 : x
  2. Step 2: Convert to fraction form
    38,302.30/57,449.40 = 12,005.65/x
  3. Step 3: Cross multiply
    38,302.30x = 57,449.40 × 12,005.65
  4. Step 4: Simplify right side
    38,302.30x = 689,717,389.11
  5. Step 5: Solve for x
    x = 689,717,389.11/38,302.30
  6. Step 6: Final answer
    x = 18,007.21

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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.