Home / 19,432.24-29,162.40-7,738.72

Finding the Fourth Proportional to 19,432.24, 29,162.40 and 7,738.72

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Solution

The fourth proportional to 19,432.24, 29,162.40 and 7,738.72 is: 11,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.24 : 29,162.40 = 7,738.72 : x
  2. Step 2: Convert to fraction form
    19,432.24/29,162.40 = 7,738.72/x
  3. Step 3: Cross multiply
    19,432.24x = 29,162.40 × 7,738.72
  4. Step 4: Simplify right side
    19,432.24x = 225,679,648.13
  5. Step 5: Solve for x
    x = 225,679,648.13/19,432.24
  6. Step 6: Final answer
    x = 11,613.67

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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.