Home / 19,899.60-29,868.96-15,175.68

Finding the Fourth Proportional to 19,899.60, 29,868.96 and 15,175.68

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Solution

The fourth proportional to 19,899.60, 29,868.96 and 15,175.68 is: 22,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.60 : 29,868.96 = 15,175.68 : x
  2. Step 2: Convert to fraction form
    19,899.60/29,868.96 = 15,175.68/x
  3. Step 3: Cross multiply
    19,899.60x = 29,868.96 × 15,175.68
  4. Step 4: Simplify right side
    19,899.60x = 453,281,778.89
  5. Step 5: Solve for x
    x = 453,281,778.89/19,899.60
  6. Step 6: Final answer
    x = 22,778.44

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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.