Home / 20,510.06-30,741.08-9,417.83

Finding the Fourth Proportional to 20,510.06, 30,741.08 and 9,417.83

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Solution

The fourth proportional to 20,510.06, 30,741.08 and 9,417.83 is: 14,115.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.06 : 30,741.08 = 9,417.83 : x
  2. Step 2: Convert to fraction form
    20,510.06/30,741.08 = 9,417.83/x
  3. Step 3: Cross multiply
    20,510.06x = 30,741.08 × 9,417.83
  4. Step 4: Simplify right side
    20,510.06x = 289,514,064.66
  5. Step 5: Solve for x
    x = 289,514,064.66/20,510.06
  6. Step 6: Final answer
    x = 14,115.71

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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.