Home / 15,056.24-20,781.05-10,020.65

Finding the Fourth Proportional to 15,056.24, 20,781.05 and 10,020.65

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Solution

The fourth proportional to 15,056.24, 20,781.05 and 10,020.65 is: 13,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.24 : 20,781.05 = 10,020.65 : x
  2. Step 2: Convert to fraction form
    15,056.24/20,781.05 = 10,020.65/x
  3. Step 3: Cross multiply
    15,056.24x = 20,781.05 × 10,020.65
  4. Step 4: Simplify right side
    15,056.24x = 208,239,474.67
  5. Step 5: Solve for x
    x = 208,239,474.67/15,056.24
  6. Step 6: Final answer
    x = 13,830.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.