Home / 25,615.80-38,423.70-13,951.80

Finding the Fourth Proportional to 25,615.80, 38,423.70 and 13,951.80

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Solution

The fourth proportional to 25,615.80, 38,423.70 and 13,951.80 is: 20,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.80 : 38,423.70 = 13,951.80 : x
  2. Step 2: Convert to fraction form
    25,615.80/38,423.70 = 13,951.80/x
  3. Step 3: Cross multiply
    25,615.80x = 38,423.70 × 13,951.80
  4. Step 4: Simplify right side
    25,615.80x = 536,079,777.66
  5. Step 5: Solve for x
    x = 536,079,777.66/25,615.80
  6. Step 6: Final answer
    x = 20,927.70

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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.