Home / 25,385.39-38,082.18-7,855.22

Finding the Fourth Proportional to 25,385.39, 38,082.18 and 7,855.22

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Solution

The fourth proportional to 25,385.39, 38,082.18 and 7,855.22 is: 11,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,385.39 : 38,082.18 = 7,855.22 : x
  2. Step 2: Convert to fraction form
    25,385.39/38,082.18 = 7,855.22/x
  3. Step 3: Cross multiply
    25,385.39x = 38,082.18 × 7,855.22
  4. Step 4: Simplify right side
    25,385.39x = 299,143,901.98
  5. Step 5: Solve for x
    x = 299,143,901.98/25,385.39
  6. Step 6: Final answer
    x = 11,784.10

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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.