Home / 20,350.59-28,082.43-11,275.67

Finding the Fourth Proportional to 20,350.59, 28,082.43 and 11,275.67

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Solution

The fourth proportional to 20,350.59, 28,082.43 and 11,275.67 is: 15,559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.59 : 28,082.43 = 11,275.67 : x
  2. Step 2: Convert to fraction form
    20,350.59/28,082.43 = 11,275.67/x
  3. Step 3: Cross multiply
    20,350.59x = 28,082.43 × 11,275.67
  4. Step 4: Simplify right side
    20,350.59x = 316,648,073.07
  5. Step 5: Solve for x
    x = 316,648,073.07/20,350.59
  6. Step 6: Final answer
    x = 15,559.65

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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.