Home / 20,690.62-31,053.95-10,836.83

Finding the Fourth Proportional to 20,690.62, 31,053.95 and 10,836.83

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Solution

The fourth proportional to 20,690.62, 31,053.95 and 10,836.83 is: 16,264.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.62 : 31,053.95 = 10,836.83 : x
  2. Step 2: Convert to fraction form
    20,690.62/31,053.95 = 10,836.83/x
  3. Step 3: Cross multiply
    20,690.62x = 31,053.95 × 10,836.83
  4. Step 4: Simplify right side
    20,690.62x = 336,526,376.98
  5. Step 5: Solve for x
    x = 336,526,376.98/20,690.62
  6. Step 6: Final answer
    x = 16,264.68

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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.