Home / 26,988.47-40,481.55-9,220.72

Finding the Fourth Proportional to 26,988.47, 40,481.55 and 9,220.72

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Solution

The fourth proportional to 26,988.47, 40,481.55 and 9,220.72 is: 13,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.47 : 40,481.55 = 9,220.72 : x
  2. Step 2: Convert to fraction form
    26,988.47/40,481.55 = 9,220.72/x
  3. Step 3: Cross multiply
    26,988.47x = 40,481.55 × 9,220.72
  4. Step 4: Simplify right side
    26,988.47x = 373,268,986.48
  5. Step 5: Solve for x
    x = 373,268,986.48/26,988.47
  6. Step 6: Final answer
    x = 13,830.69

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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.