Home / 28,488.08-42,737.80-8,765.88

Finding the Fourth Proportional to 28,488.08, 42,737.80 and 8,765.88

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Solution

The fourth proportional to 28,488.08, 42,737.80 and 8,765.88 is: 13,150.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.08 : 42,737.80 = 8,765.88 : x
  2. Step 2: Convert to fraction form
    28,488.08/42,737.80 = 8,765.88/x
  3. Step 3: Cross multiply
    28,488.08x = 42,737.80 × 8,765.88
  4. Step 4: Simplify right side
    28,488.08x = 374,634,426.26
  5. Step 5: Solve for x
    x = 374,634,426.26/28,488.08
  6. Step 6: Final answer
    x = 13,150.57

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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.