Home / 19,631.76-29,449.29-8,538.84

Finding the Fourth Proportional to 19,631.76, 29,449.29 and 8,538.84

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Solution

The fourth proportional to 19,631.76, 29,449.29 and 8,538.84 is: 12,808.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.76 : 29,449.29 = 8,538.84 : x
  2. Step 2: Convert to fraction form
    19,631.76/29,449.29 = 8,538.84/x
  3. Step 3: Cross multiply
    19,631.76x = 29,449.29 × 8,538.84
  4. Step 4: Simplify right side
    19,631.76x = 251,462,775.42
  5. Step 5: Solve for x
    x = 251,462,775.42/19,631.76
  6. Step 6: Final answer
    x = 12,808.98

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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.