Home / 19,654.79-29,479.04-5,419.95

Finding the Fourth Proportional to 19,654.79, 29,479.04 and 5,419.95

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Solution

The fourth proportional to 19,654.79, 29,479.04 and 5,419.95 is: 8,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.79 : 29,479.04 = 5,419.95 : x
  2. Step 2: Convert to fraction form
    19,654.79/29,479.04 = 5,419.95/x
  3. Step 3: Cross multiply
    19,654.79x = 29,479.04 × 5,419.95
  4. Step 4: Simplify right side
    19,654.79x = 159,774,805.53
  5. Step 5: Solve for x
    x = 159,774,805.53/19,654.79
  6. Step 6: Final answer
    x = 8,129.05

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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.