Home / 39,559.28-54,591.89-21,655.43

Finding the Fourth Proportional to 39,559.28, 54,591.89 and 21,655.43

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Solution

The fourth proportional to 39,559.28, 54,591.89 and 21,655.43 is: 29,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,559.28 : 54,591.89 = 21,655.43 : x
  2. Step 2: Convert to fraction form
    39,559.28/54,591.89 = 21,655.43/x
  3. Step 3: Cross multiply
    39,559.28x = 54,591.89 × 21,655.43
  4. Step 4: Simplify right side
    39,559.28x = 1,182,210,880.67
  5. Step 5: Solve for x
    x = 1,182,210,880.67/39,559.28
  6. Step 6: Final answer
    x = 29,884.54

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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.