Home / 19,248.80-28,851.28-8,148.56

Finding the Fourth Proportional to 19,248.80, 28,851.28 and 8,148.56

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Solution

The fourth proportional to 19,248.80, 28,851.28 and 8,148.56 is: 12,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.80 : 28,851.28 = 8,148.56 : x
  2. Step 2: Convert to fraction form
    19,248.80/28,851.28 = 8,148.56/x
  3. Step 3: Cross multiply
    19,248.80x = 28,851.28 × 8,148.56
  4. Step 4: Simplify right side
    19,248.80x = 235,096,386.16
  5. Step 5: Solve for x
    x = 235,096,386.16/19,248.80
  6. Step 6: Final answer
    x = 12,213.56

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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.