Home / 26,627.20-39,998.40-18,851.20

Finding the Fourth Proportional to 26,627.20, 39,998.40 and 18,851.20

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Solution

The fourth proportional to 26,627.20, 39,998.40 and 18,851.20 is: 28,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,627.20 : 39,998.40 = 18,851.20 : x
  2. Step 2: Convert to fraction form
    26,627.20/39,998.40 = 18,851.20/x
  3. Step 3: Cross multiply
    26,627.20x = 39,998.40 × 18,851.20
  4. Step 4: Simplify right side
    26,627.20x = 754,017,838.08
  5. Step 5: Solve for x
    x = 754,017,838.08/26,627.20
  6. Step 6: Final answer
    x = 28,317.58

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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.