Home / 28,286.60-42,436.02-10,756.76

Finding the Fourth Proportional to 28,286.60, 42,436.02 and 10,756.76

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Solution

The fourth proportional to 28,286.60, 42,436.02 and 10,756.76 is: 16,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.60 : 42,436.02 = 10,756.76 : x
  2. Step 2: Convert to fraction form
    28,286.60/42,436.02 = 10,756.76/x
  3. Step 3: Cross multiply
    28,286.60x = 42,436.02 × 10,756.76
  4. Step 4: Simplify right side
    28,286.60x = 456,474,082.50
  5. Step 5: Solve for x
    x = 456,474,082.50/28,286.60
  6. Step 6: Final answer
    x = 16,137.47

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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.