Home / 30,082.74-41,501.15-18,139.44

Finding the Fourth Proportional to 30,082.74, 41,501.15 and 18,139.44

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Solution

The fourth proportional to 30,082.74, 41,501.15 and 18,139.44 is: 25,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,082.74 : 41,501.15 = 18,139.44 : x
  2. Step 2: Convert to fraction form
    30,082.74/41,501.15 = 18,139.44/x
  3. Step 3: Cross multiply
    30,082.74x = 41,501.15 × 18,139.44
  4. Step 4: Simplify right side
    30,082.74x = 752,807,727.80
  5. Step 5: Solve for x
    x = 752,807,727.80/30,082.74
  6. Step 6: Final answer
    x = 25,024.57

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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.