Home / 28,265.05-42,398.25-8,543.53

Finding the Fourth Proportional to 28,265.05, 42,398.25 and 8,543.53

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Solution

The fourth proportional to 28,265.05, 42,398.25 and 8,543.53 is: 12,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.05 : 42,398.25 = 8,543.53 : x
  2. Step 2: Convert to fraction form
    28,265.05/42,398.25 = 8,543.53/x
  3. Step 3: Cross multiply
    28,265.05x = 42,398.25 × 8,543.53
  4. Step 4: Simplify right side
    28,265.05x = 362,230,720.82
  5. Step 5: Solve for x
    x = 362,230,720.82/28,265.05
  6. Step 6: Final answer
    x = 12,815.50

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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.