Home / 20,237.70-30,356.55-15,316.95

Finding the Fourth Proportional to 20,237.70, 30,356.55 and 15,316.95

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Solution

The fourth proportional to 20,237.70, 30,356.55 and 15,316.95 is: 22,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.70 : 30,356.55 = 15,316.95 : x
  2. Step 2: Convert to fraction form
    20,237.70/30,356.55 = 15,316.95/x
  3. Step 3: Cross multiply
    20,237.70x = 30,356.55 × 15,316.95
  4. Step 4: Simplify right side
    20,237.70x = 464,969,758.52
  5. Step 5: Solve for x
    x = 464,969,758.52/20,237.70
  6. Step 6: Final answer
    x = 22,975.43

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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.