Home / 20,359.96-30,541.02-7,213.72

Finding the Fourth Proportional to 20,359.96, 30,541.02 and 7,213.72

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Solution

The fourth proportional to 20,359.96, 30,541.02 and 7,213.72 is: 10,820.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.96 : 30,541.02 = 7,213.72 : x
  2. Step 2: Convert to fraction form
    20,359.96/30,541.02 = 7,213.72/x
  3. Step 3: Cross multiply
    20,359.96x = 30,541.02 × 7,213.72
  4. Step 4: Simplify right side
    20,359.96x = 220,314,366.79
  5. Step 5: Solve for x
    x = 220,314,366.79/20,359.96
  6. Step 6: Final answer
    x = 10,820.96

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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.