Home / 21,869.13-32,800.19-7,826.55

Finding the Fourth Proportional to 21,869.13, 32,800.19 and 7,826.55

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Solution

The fourth proportional to 21,869.13, 32,800.19 and 7,826.55 is: 11,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.13 : 32,800.19 = 7,826.55 : x
  2. Step 2: Convert to fraction form
    21,869.13/32,800.19 = 7,826.55/x
  3. Step 3: Cross multiply
    21,869.13x = 32,800.19 × 7,826.55
  4. Step 4: Simplify right side
    21,869.13x = 256,712,164.91
  5. Step 5: Solve for x
    x = 256,712,164.91/21,869.13
  6. Step 6: Final answer
    x = 11,738.56

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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.