Home / 28,082.28-42,113.70-15,621.24

Finding the Fourth Proportional to 28,082.28, 42,113.70 and 15,621.24

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Solution

The fourth proportional to 28,082.28, 42,113.70 and 15,621.24 is: 23,426.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.28 : 42,113.70 = 15,621.24 : x
  2. Step 2: Convert to fraction form
    28,082.28/42,113.70 = 15,621.24/x
  3. Step 3: Cross multiply
    28,082.28x = 42,113.70 × 15,621.24
  4. Step 4: Simplify right side
    28,082.28x = 657,868,214.99
  5. Step 5: Solve for x
    x = 657,868,214.99/28,082.28
  6. Step 6: Final answer
    x = 23,426.45

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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.