Home / 20,342.12-30,530.46-8,038.76

Finding the Fourth Proportional to 20,342.12, 30,530.46 and 8,038.76

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Solution

The fourth proportional to 20,342.12, 30,530.46 and 8,038.76 is: 12,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.12 : 30,530.46 = 8,038.76 : x
  2. Step 2: Convert to fraction form
    20,342.12/30,530.46 = 8,038.76/x
  3. Step 3: Cross multiply
    20,342.12x = 30,530.46 × 8,038.76
  4. Step 4: Simplify right side
    20,342.12x = 245,427,040.63
  5. Step 5: Solve for x
    x = 245,427,040.63/20,342.12
  6. Step 6: Final answer
    x = 12,064.97

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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.