Home / 15,284.82-21,082.38-14,770.45

Finding the Fourth Proportional to 15,284.82, 21,082.38 and 14,770.45

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Solution

The fourth proportional to 15,284.82, 21,082.38 and 14,770.45 is: 20,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.82 : 21,082.38 = 14,770.45 : x
  2. Step 2: Convert to fraction form
    15,284.82/21,082.38 = 14,770.45/x
  3. Step 3: Cross multiply
    15,284.82x = 21,082.38 × 14,770.45
  4. Step 4: Simplify right side
    15,284.82x = 311,396,280.74
  5. Step 5: Solve for x
    x = 311,396,280.74/15,284.82
  6. Step 6: Final answer
    x = 20,372.91

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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.