Home / 20,610.74-28,444.23-11,658.21

Finding the Fourth Proportional to 20,610.74, 28,444.23 and 11,658.21

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Solution

The fourth proportional to 20,610.74, 28,444.23 and 11,658.21 is: 16,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.74 : 28,444.23 = 11,658.21 : x
  2. Step 2: Convert to fraction form
    20,610.74/28,444.23 = 11,658.21/x
  3. Step 3: Cross multiply
    20,610.74x = 28,444.23 × 11,658.21
  4. Step 4: Simplify right side
    20,610.74x = 331,608,806.63
  5. Step 5: Solve for x
    x = 331,608,806.63/20,610.74
  6. Step 6: Final answer
    x = 16,089.13

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1.5x scale

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.