Home / 25,401.28-38,085.72-10,620.40

Finding the Fourth Proportional to 25,401.28, 38,085.72 and 10,620.40

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Solution

The fourth proportional to 25,401.28, 38,085.72 and 10,620.40 is: 15,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.28 : 38,085.72 = 10,620.40 : x
  2. Step 2: Convert to fraction form
    25,401.28/38,085.72 = 10,620.40/x
  3. Step 3: Cross multiply
    25,401.28x = 38,085.72 × 10,620.40
  4. Step 4: Simplify right side
    25,401.28x = 404,485,580.69
  5. Step 5: Solve for x
    x = 404,485,580.69/25,401.28
  6. Step 6: Final answer
    x = 15,923.83

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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.