Home / 40,108.60-55,350.52-21,959.02

Finding the Fourth Proportional to 40,108.60, 55,350.52 and 21,959.02

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Solution

The fourth proportional to 40,108.60, 55,350.52 and 21,959.02 is: 30,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.60 : 55,350.52 = 21,959.02 : x
  2. Step 2: Convert to fraction form
    40,108.60/55,350.52 = 21,959.02/x
  3. Step 3: Cross multiply
    40,108.60x = 55,350.52 × 21,959.02
  4. Step 4: Simplify right side
    40,108.60x = 1,215,443,096.07
  5. Step 5: Solve for x
    x = 1,215,443,096.07/40,108.60
  6. Step 6: Final answer
    x = 30,303.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.