Home / 28,532.56-42,759.96-13,740.40

Finding the Fourth Proportional to 28,532.56, 42,759.96 and 13,740.40

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Solution

The fourth proportional to 28,532.56, 42,759.96 and 13,740.40 is: 20,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.56 : 42,759.96 = 13,740.40 : x
  2. Step 2: Convert to fraction form
    28,532.56/42,759.96 = 13,740.40/x
  3. Step 3: Cross multiply
    28,532.56x = 42,759.96 × 13,740.40
  4. Step 4: Simplify right side
    28,532.56x = 587,538,954.38
  5. Step 5: Solve for x
    x = 587,538,954.38/28,532.56
  6. Step 6: Final answer
    x = 20,591.88

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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.