Home / 19,414.12-26,785.04-15,822.90

Finding the Fourth Proportional to 19,414.12, 26,785.04 and 15,822.90

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Solution

The fourth proportional to 19,414.12, 26,785.04 and 15,822.90 is: 21,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,414.12 : 26,785.04 = 15,822.90 : x
  2. Step 2: Convert to fraction form
    19,414.12/26,785.04 = 15,822.90/x
  3. Step 3: Cross multiply
    19,414.12x = 26,785.04 × 15,822.90
  4. Step 4: Simplify right side
    19,414.12x = 423,817,149.42
  5. Step 5: Solve for x
    x = 423,817,149.42/19,414.12
  6. Step 6: Final answer
    x = 21,830.35

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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.