Home / 21,818.04-30,120.30-17,027.70

Finding the Fourth Proportional to 21,818.04, 30,120.30 and 17,027.70

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Solution

The fourth proportional to 21,818.04, 30,120.30 and 17,027.70 is: 23,507.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818.04 : 30,120.30 = 17,027.70 : x
  2. Step 2: Convert to fraction form
    21,818.04/30,120.30 = 17,027.70/x
  3. Step 3: Cross multiply
    21,818.04x = 30,120.30 × 17,027.70
  4. Step 4: Simplify right side
    21,818.04x = 512,879,432.31
  5. Step 5: Solve for x
    x = 512,879,432.31/21,818.04
  6. Step 6: Final answer
    x = 23,507.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.