Home / 19,818.60-29,663.10-15,412.20

Finding the Fourth Proportional to 19,818.60, 29,663.10 and 15,412.20

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Solution

The fourth proportional to 19,818.60, 29,663.10 and 15,412.20 is: 23,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.60 : 29,663.10 = 15,412.20 : x
  2. Step 2: Convert to fraction form
    19,818.60/29,663.10 = 15,412.20/x
  3. Step 3: Cross multiply
    19,818.60x = 29,663.10 × 15,412.20
  4. Step 4: Simplify right side
    19,818.60x = 457,173,629.82
  5. Step 5: Solve for x
    x = 457,173,629.82/19,818.60
  6. Step 6: Final answer
    x = 23,067.91

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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.