Home / 28,560.88-39,392.24-18,983.60

Finding the Fourth Proportional to 28,560.88, 39,392.24 and 18,983.60

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Solution

The fourth proportional to 28,560.88, 39,392.24 and 18,983.60 is: 26,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.88 : 39,392.24 = 18,983.60 : x
  2. Step 2: Convert to fraction form
    28,560.88/39,392.24 = 18,983.60/x
  3. Step 3: Cross multiply
    28,560.88x = 39,392.24 × 18,983.60
  4. Step 4: Simplify right side
    28,560.88x = 747,806,527.26
  5. Step 5: Solve for x
    x = 747,806,527.26/28,560.88
  6. Step 6: Final answer
    x = 26,182.90

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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.