Home / 28,452.77-42,677.55-8,731.28

Finding the Fourth Proportional to 28,452.77, 42,677.55 and 8,731.28

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Solution

The fourth proportional to 28,452.77, 42,677.55 and 8,731.28 is: 13,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.77 : 42,677.55 = 8,731.28 : x
  2. Step 2: Convert to fraction form
    28,452.77/42,677.55 = 8,731.28/x
  3. Step 3: Cross multiply
    28,452.77x = 42,677.55 × 8,731.28
  4. Step 4: Simplify right side
    28,452.77x = 372,629,638.76
  5. Step 5: Solve for x
    x = 372,629,638.76/28,452.77
  6. Step 6: Final answer
    x = 13,096.43

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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.