Home / 19,429.20-29,100.60-10,184.40

Finding the Fourth Proportional to 19,429.20, 29,100.60 and 10,184.40

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Solution

The fourth proportional to 19,429.20, 29,100.60 and 10,184.40 is: 15,253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.20 : 29,100.60 = 10,184.40 : x
  2. Step 2: Convert to fraction form
    19,429.20/29,100.60 = 10,184.40/x
  3. Step 3: Cross multiply
    19,429.20x = 29,100.60 × 10,184.40
  4. Step 4: Simplify right side
    19,429.20x = 296,372,150.64
  5. Step 5: Solve for x
    x = 296,372,150.64/19,429.20
  6. Step 6: Final answer
    x = 15,253.96

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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.