Home / 19,242.57-28,841.45-8,145.57

Finding the Fourth Proportional to 19,242.57, 28,841.45 and 8,145.57

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Solution

The fourth proportional to 19,242.57, 28,841.45 and 8,145.57 is: 12,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.57 : 28,841.45 = 8,145.57 : x
  2. Step 2: Convert to fraction form
    19,242.57/28,841.45 = 8,145.57/x
  3. Step 3: Cross multiply
    19,242.57x = 28,841.45 × 8,145.57
  4. Step 4: Simplify right side
    19,242.57x = 234,930,009.15
  5. Step 5: Solve for x
    x = 234,930,009.15/19,242.57
  6. Step 6: Final answer
    x = 12,208.87

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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.