Home / 19,447.20-29,122.20-12,837.60

Finding the Fourth Proportional to 19,447.20, 29,122.20 and 12,837.60

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Solution

The fourth proportional to 19,447.20, 29,122.20 and 12,837.60 is: 19,224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.20 : 29,122.20 = 12,837.60 : x
  2. Step 2: Convert to fraction form
    19,447.20/29,122.20 = 12,837.60/x
  3. Step 3: Cross multiply
    19,447.20x = 29,122.20 × 12,837.60
  4. Step 4: Simplify right side
    19,447.20x = 373,859,154.72
  5. Step 5: Solve for x
    x = 373,859,154.72/19,447.20
  6. Step 6: Final answer
    x = 19,224.32

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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.