Home / 73,014.30-109,521.72-20,423.70

Finding the Fourth Proportional to 73,014.30, 109,521.72 and 20,423.70

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Solution

The fourth proportional to 73,014.30, 109,521.72 and 20,423.70 is: 30,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,014.30 : 109,521.72 = 20,423.70 : x
  2. Step 2: Convert to fraction form
    73,014.30/109,521.72 = 20,423.70/x
  3. Step 3: Cross multiply
    73,014.30x = 109,521.72 × 20,423.70
  4. Step 4: Simplify right side
    73,014.30x = 2,236,838,752.76
  5. Step 5: Solve for x
    x = 2,236,838,752.76/73,014.30
  6. Step 6: Final answer
    x = 30,635.63

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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.