Home / 20,397.92-30,590.76-7,248.56

Finding the Fourth Proportional to 20,397.92, 30,590.76 and 7,248.56

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Solution

The fourth proportional to 20,397.92, 30,590.76 and 7,248.56 is: 10,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.92 : 30,590.76 = 7,248.56 : x
  2. Step 2: Convert to fraction form
    20,397.92/30,590.76 = 7,248.56/x
  3. Step 3: Cross multiply
    20,397.92x = 30,590.76 × 7,248.56
  4. Step 4: Simplify right side
    20,397.92x = 221,738,959.31
  5. Step 5: Solve for x
    x = 221,738,959.31/20,397.92
  6. Step 6: Final answer
    x = 10,870.67

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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.