Home / 67,018.92-100,528.44-20,271.84

Finding the Fourth Proportional to 67,018.92, 100,528.44 and 20,271.84

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Solution

The fourth proportional to 67,018.92, 100,528.44 and 20,271.84 is: 30,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,018.92 : 100,528.44 = 20,271.84 : x
  2. Step 2: Convert to fraction form
    67,018.92/100,528.44 = 20,271.84/x
  3. Step 3: Cross multiply
    67,018.92x = 100,528.44 × 20,271.84
  4. Step 4: Simplify right side
    67,018.92x = 2,037,896,451.13
  5. Step 5: Solve for x
    x = 2,037,896,451.13/67,018.92
  6. Step 6: Final answer
    x = 30,407.78

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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.