Home / 28,316.61-42,488.74-20,049.75

Finding the Fourth Proportional to 28,316.61, 42,488.74 and 20,049.75

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Solution

The fourth proportional to 28,316.61, 42,488.74 and 20,049.75 is: 30,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.61 : 42,488.74 = 20,049.75 : x
  2. Step 2: Convert to fraction form
    28,316.61/42,488.74 = 20,049.75/x
  3. Step 3: Cross multiply
    28,316.61x = 42,488.74 × 20,049.75
  4. Step 4: Simplify right side
    28,316.61x = 851,888,731.18
  5. Step 5: Solve for x
    x = 851,888,731.18/28,316.61
  6. Step 6: Final answer
    x = 30,084.41

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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.