Home / 28,474.24-42,711.40-8,752.68

Finding the Fourth Proportional to 28,474.24, 42,711.40 and 8,752.68

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Solution

The fourth proportional to 28,474.24, 42,711.40 and 8,752.68 is: 13,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.24 : 42,711.40 = 8,752.68 : x
  2. Step 2: Convert to fraction form
    28,474.24/42,711.40 = 8,752.68/x
  3. Step 3: Cross multiply
    28,474.24x = 42,711.40 × 8,752.68
  4. Step 4: Simplify right side
    28,474.24x = 373,839,216.55
  5. Step 5: Solve for x
    x = 373,839,216.55/28,474.24
  6. Step 6: Final answer
    x = 13,129.03

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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.