Home / 19,201.44-28,760.40-9,319.92

Finding the Fourth Proportional to 19,201.44, 28,760.40 and 9,319.92

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Solution

The fourth proportional to 19,201.44, 28,760.40 and 9,319.92 is: 13,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.44 : 28,760.40 = 9,319.92 : x
  2. Step 2: Convert to fraction form
    19,201.44/28,760.40 = 9,319.92/x
  3. Step 3: Cross multiply
    19,201.44x = 28,760.40 × 9,319.92
  4. Step 4: Simplify right side
    19,201.44x = 268,044,627.17
  5. Step 5: Solve for x
    x = 268,044,627.17/19,201.44
  6. Step 6: Final answer
    x = 13,959.61

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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.