Home / 28,157.02-38,841.12-18,086.95

Finding the Fourth Proportional to 28,157.02, 38,841.12 and 18,086.95

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Solution

The fourth proportional to 28,157.02, 38,841.12 and 18,086.95 is: 24,949.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.02 : 38,841.12 = 18,086.95 : x
  2. Step 2: Convert to fraction form
    28,157.02/38,841.12 = 18,086.95/x
  3. Step 3: Cross multiply
    28,157.02x = 38,841.12 × 18,086.95
  4. Step 4: Simplify right side
    28,157.02x = 702,517,225.45
  5. Step 5: Solve for x
    x = 702,517,225.45/28,157.02
  6. Step 6: Final answer
    x = 24,949.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.