Home / 20,869.25-31,282.99-10,346.97

Finding the Fourth Proportional to 20,869.25, 31,282.99 and 10,346.97

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Solution

The fourth proportional to 20,869.25, 31,282.99 and 10,346.97 is: 15,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.25 : 31,282.99 = 10,346.97 : x
  2. Step 2: Convert to fraction form
    20,869.25/31,282.99 = 10,346.97/x
  3. Step 3: Cross multiply
    20,869.25x = 31,282.99 × 10,346.97
  4. Step 4: Simplify right side
    20,869.25x = 323,684,159.04
  5. Step 5: Solve for x
    x = 323,684,159.04/20,869.25
  6. Step 6: Final answer
    x = 15,510.10

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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.