Home / 20,482.18-28,262.03-11,865.29

Finding the Fourth Proportional to 20,482.18, 28,262.03 and 11,865.29

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Solution

The fourth proportional to 20,482.18, 28,262.03 and 11,865.29 is: 16,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.18 : 28,262.03 = 11,865.29 : x
  2. Step 2: Convert to fraction form
    20,482.18/28,262.03 = 11,865.29/x
  3. Step 3: Cross multiply
    20,482.18x = 28,262.03 × 11,865.29
  4. Step 4: Simplify right side
    20,482.18x = 335,337,282.26
  5. Step 5: Solve for x
    x = 335,337,282.26/20,482.18
  6. Step 6: Final answer
    x = 16,372.15

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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.