Home / 15,956.20-23,877.60-13,898.80

Finding the Fourth Proportional to 15,956.20, 23,877.60 and 13,898.80

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Solution

The fourth proportional to 15,956.20, 23,877.60 and 13,898.80 is: 20,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.20 : 23,877.60 = 13,898.80 : x
  2. Step 2: Convert to fraction form
    15,956.20/23,877.60 = 13,898.80/x
  3. Step 3: Cross multiply
    15,956.20x = 23,877.60 × 13,898.80
  4. Step 4: Simplify right side
    15,956.20x = 331,869,986.88
  5. Step 5: Solve for x
    x = 331,869,986.88/15,956.20
  6. Step 6: Final answer
    x = 20,798.81

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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.