Home / 20,869.52-31,266.61-13,832.84

Finding the Fourth Proportional to 20,869.52, 31,266.61 and 13,832.84

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Solution

The fourth proportional to 20,869.52, 31,266.61 and 13,832.84 is: 20,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.52 : 31,266.61 = 13,832.84 : x
  2. Step 2: Convert to fraction form
    20,869.52/31,266.61 = 13,832.84/x
  3. Step 3: Cross multiply
    20,869.52x = 31,266.61 × 13,832.84
  4. Step 4: Simplify right side
    20,869.52x = 432,506,057.06
  5. Step 5: Solve for x
    x = 432,506,057.06/20,869.52
  6. Step 6: Final answer
    x = 20,724.30

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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.