Home / 28,134.58-42,189.54-25,387.12

Finding the Fourth Proportional to 28,134.58, 42,189.54 and 25,387.12

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Solution

The fourth proportional to 28,134.58, 42,189.54 and 25,387.12 is: 38,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134.58 : 42,189.54 = 25,387.12 : x
  2. Step 2: Convert to fraction form
    28,134.58/42,189.54 = 25,387.12/x
  3. Step 3: Cross multiply
    28,134.58x = 42,189.54 × 25,387.12
  4. Step 4: Simplify right side
    28,134.58x = 1,071,070,914.72
  5. Step 5: Solve for x
    x = 1,071,070,914.72/28,134.58
  6. Step 6: Final answer
    x = 38,069.55

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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.