Home / 27,901.70-38,503.24-15,154.60

Finding the Fourth Proportional to 27,901.70, 38,503.24 and 15,154.60

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Solution

The fourth proportional to 27,901.70, 38,503.24 and 15,154.60 is: 20,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.70 : 38,503.24 = 15,154.60 : x
  2. Step 2: Convert to fraction form
    27,901.70/38,503.24 = 15,154.60/x
  3. Step 3: Cross multiply
    27,901.70x = 38,503.24 × 15,154.60
  4. Step 4: Simplify right side
    27,901.70x = 583,501,200.90
  5. Step 5: Solve for x
    x = 583,501,200.90/27,901.70
  6. Step 6: Final answer
    x = 20,912.75

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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.