Home / 20,366.16-28,102.02-12,410.88

Finding the Fourth Proportional to 20,366.16, 28,102.02 and 12,410.88

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Solution

The fourth proportional to 20,366.16, 28,102.02 and 12,410.88 is: 17,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.16 : 28,102.02 = 12,410.88 : x
  2. Step 2: Convert to fraction form
    20,366.16/28,102.02 = 12,410.88/x
  3. Step 3: Cross multiply
    20,366.16x = 28,102.02 × 12,410.88
  4. Step 4: Simplify right side
    20,366.16x = 348,770,797.98
  5. Step 5: Solve for x
    x = 348,770,797.98/20,366.16
  6. Step 6: Final answer
    x = 17,125.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.