Home / 21,862.46-32,785.61-7,818.68

Finding the Fourth Proportional to 21,862.46, 32,785.61 and 7,818.68

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Solution

The fourth proportional to 21,862.46, 32,785.61 and 7,818.68 is: 11,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862.46 : 32,785.61 = 7,818.68 : x
  2. Step 2: Convert to fraction form
    21,862.46/32,785.61 = 7,818.68/x
  3. Step 3: Cross multiply
    21,862.46x = 32,785.61 × 7,818.68
  4. Step 4: Simplify right side
    21,862.46x = 256,340,095.63
  5. Step 5: Solve for x
    x = 256,340,095.63/21,862.46
  6. Step 6: Final answer
    x = 11,725.13

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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.