Home / 25,561.28-38,325.72-10,780.40

Finding the Fourth Proportional to 25,561.28, 38,325.72 and 10,780.40

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Solution

The fourth proportional to 25,561.28, 38,325.72 and 10,780.40 is: 16,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,561.28 : 38,325.72 = 10,780.40 : x
  2. Step 2: Convert to fraction form
    25,561.28/38,325.72 = 10,780.40/x
  3. Step 3: Cross multiply
    25,561.28x = 38,325.72 × 10,780.40
  4. Step 4: Simplify right side
    25,561.28x = 413,166,591.89
  5. Step 5: Solve for x
    x = 413,166,591.89/25,561.28
  6. Step 6: Final answer
    x = 16,163.77

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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.