Home / 40,338.71-55,666.46-21,941.36

Finding the Fourth Proportional to 40,338.71, 55,666.46 and 21,941.36

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Solution

The fourth proportional to 40,338.71, 55,666.46 and 21,941.36 is: 30,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,338.71 : 55,666.46 = 21,941.36 : x
  2. Step 2: Convert to fraction form
    40,338.71/55,666.46 = 21,941.36/x
  3. Step 3: Cross multiply
    40,338.71x = 55,666.46 × 21,941.36
  4. Step 4: Simplify right side
    40,338.71x = 1,221,397,729.08
  5. Step 5: Solve for x
    x = 1,221,397,729.08/40,338.71
  6. Step 6: Final answer
    x = 30,278.55

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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.