Home / 20,373.24-30,541.62-12,956.88

Finding the Fourth Proportional to 20,373.24, 30,541.62 and 12,956.88

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Solution

The fourth proportional to 20,373.24, 30,541.62 and 12,956.88 is: 19,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.24 : 30,541.62 = 12,956.88 : x
  2. Step 2: Convert to fraction form
    20,373.24/30,541.62 = 12,956.88/x
  3. Step 3: Cross multiply
    20,373.24x = 30,541.62 × 12,956.88
  4. Step 4: Simplify right side
    20,373.24x = 395,724,105.35
  5. Step 5: Solve for x
    x = 395,724,105.35/20,373.24
  6. Step 6: Final answer
    x = 19,423.72

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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.