Home / 25,433.28-38,156.85-12,285.66

Finding the Fourth Proportional to 25,433.28, 38,156.85 and 12,285.66

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Solution

The fourth proportional to 25,433.28, 38,156.85 and 12,285.66 is: 18,431.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,433.28 : 38,156.85 = 12,285.66 : x
  2. Step 2: Convert to fraction form
    25,433.28/38,156.85 = 12,285.66/x
  3. Step 3: Cross multiply
    25,433.28x = 38,156.85 × 12,285.66
  4. Step 4: Simplify right side
    25,433.28x = 468,782,085.77
  5. Step 5: Solve for x
    x = 468,782,085.77/25,433.28
  6. Step 6: Final answer
    x = 18,431.84

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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.