Home / 25,935.12-38,888.76-8,162.45

Finding the Fourth Proportional to 25,935.12, 38,888.76 and 8,162.45

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Solution

The fourth proportional to 25,935.12, 38,888.76 and 8,162.45 is: 12,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,935.12 : 38,888.76 = 8,162.45 : x
  2. Step 2: Convert to fraction form
    25,935.12/38,888.76 = 8,162.45/x
  3. Step 3: Cross multiply
    25,935.12x = 38,888.76 × 8,162.45
  4. Step 4: Simplify right side
    25,935.12x = 317,427,713.90
  5. Step 5: Solve for x
    x = 317,427,713.90/25,935.12
  6. Step 6: Final answer
    x = 12,239.30

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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.