Home / 19,421.78-29,137.52-6,275.48

Finding the Fourth Proportional to 19,421.78, 29,137.52 and 6,275.48

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Solution

The fourth proportional to 19,421.78, 29,137.52 and 6,275.48 is: 9,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.78 : 29,137.52 = 6,275.48 : x
  2. Step 2: Convert to fraction form
    19,421.78/29,137.52 = 6,275.48/x
  3. Step 3: Cross multiply
    19,421.78x = 29,137.52 × 6,275.48
  4. Step 4: Simplify right side
    19,421.78x = 182,851,794.01
  5. Step 5: Solve for x
    x = 182,851,794.01/19,421.78
  6. Step 6: Final answer
    x = 9,414.78

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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.