Home / 19,584.60-29,366.10-8,489.40

Finding the Fourth Proportional to 19,584.60, 29,366.10 and 8,489.40

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Solution

The fourth proportional to 19,584.60, 29,366.10 and 8,489.40 is: 12,729.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,584.60 : 29,366.10 = 8,489.40 : x
  2. Step 2: Convert to fraction form
    19,584.60/29,366.10 = 8,489.40/x
  3. Step 3: Cross multiply
    19,584.60x = 29,366.10 × 8,489.40
  4. Step 4: Simplify right side
    19,584.60x = 249,300,569.34
  5. Step 5: Solve for x
    x = 249,300,569.34/19,584.60
  6. Step 6: Final answer
    x = 12,729.42

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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.