Home / 28,484.97-42,732.30-8,763.09

Finding the Fourth Proportional to 28,484.97, 42,732.30 and 8,763.09

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Solution

The fourth proportional to 28,484.97, 42,732.30 and 8,763.09 is: 13,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.97 : 42,732.30 = 8,763.09 : x
  2. Step 2: Convert to fraction form
    28,484.97/42,732.30 = 8,763.09/x
  3. Step 3: Cross multiply
    28,484.97x = 42,732.30 × 8,763.09
  4. Step 4: Simplify right side
    28,484.97x = 374,466,990.81
  5. Step 5: Solve for x
    x = 374,466,990.81/28,484.97
  6. Step 6: Final answer
    x = 13,146.13

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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.