Home / 20,248.98-30,376.71-9,155.22

Finding the Fourth Proportional to 20,248.98, 30,376.71 and 9,155.22

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Solution

The fourth proportional to 20,248.98, 30,376.71 and 9,155.22 is: 13,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.98 : 30,376.71 = 9,155.22 : x
  2. Step 2: Convert to fraction form
    20,248.98/30,376.71 = 9,155.22/x
  3. Step 3: Cross multiply
    20,248.98x = 30,376.71 × 9,155.22
  4. Step 4: Simplify right side
    20,248.98x = 278,105,462.93
  5. Step 5: Solve for x
    x = 278,105,462.93/20,248.98
  6. Step 6: Final answer
    x = 13,734.29

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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.