Home / 19,555.13-29,330.61-5,514.78

Finding the Fourth Proportional to 19,555.13, 29,330.61 and 5,514.78

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Solution

The fourth proportional to 19,555.13, 29,330.61 and 5,514.78 is: 8,271.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.13 : 29,330.61 = 5,514.78 : x
  2. Step 2: Convert to fraction form
    19,555.13/29,330.61 = 5,514.78/x
  3. Step 3: Cross multiply
    19,555.13x = 29,330.61 × 5,514.78
  4. Step 4: Simplify right side
    19,555.13x = 161,751,861.42
  5. Step 5: Solve for x
    x = 161,751,861.42/19,555.13
  6. Step 6: Final answer
    x = 8,271.58

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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.