Home / 19,246.90-28,881.15-8,151.70

Finding the Fourth Proportional to 19,246.90, 28,881.15 and 8,151.70

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Solution

The fourth proportional to 19,246.90, 28,881.15 and 8,151.70 is: 12,232.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.90 : 28,881.15 = 8,151.70 : x
  2. Step 2: Convert to fraction form
    19,246.90/28,881.15 = 8,151.70/x
  3. Step 3: Cross multiply
    19,246.90x = 28,881.15 × 8,151.70
  4. Step 4: Simplify right side
    19,246.90x = 235,430,470.46
  5. Step 5: Solve for x
    x = 235,430,470.46/19,246.90
  6. Step 6: Final answer
    x = 12,232.12

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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.