Home / 28,651.29-42,977.23-8,660.95

Finding the Fourth Proportional to 28,651.29, 42,977.23 and 8,660.95

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Solution

The fourth proportional to 28,651.29, 42,977.23 and 8,660.95 is: 12,991.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.29 : 42,977.23 = 8,660.95 : x
  2. Step 2: Convert to fraction form
    28,651.29/42,977.23 = 8,660.95/x
  3. Step 3: Cross multiply
    28,651.29x = 42,977.23 × 8,660.95
  4. Step 4: Simplify right side
    28,651.29x = 372,223,543.55
  5. Step 5: Solve for x
    x = 372,223,543.55/28,651.29
  6. Step 6: Final answer
    x = 12,991.51

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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.