Home / 25,458.29-38,178.32-8,813.85

Finding the Fourth Proportional to 25,458.29, 38,178.32 and 8,813.85

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Solution

The fourth proportional to 25,458.29, 38,178.32 and 8,813.85 is: 13,217.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.29 : 38,178.32 = 8,813.85 : x
  2. Step 2: Convert to fraction form
    25,458.29/38,178.32 = 8,813.85/x
  3. Step 3: Cross multiply
    25,458.29x = 38,178.32 × 8,813.85
  4. Step 4: Simplify right side
    25,458.29x = 336,497,870.08
  5. Step 5: Solve for x
    x = 336,497,870.08/25,458.29
  6. Step 6: Final answer
    x = 13,217.62

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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.