Home / 21,955.32-30,305.07-19,002.90

Finding the Fourth Proportional to 21,955.32, 30,305.07 and 19,002.90

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Solution

The fourth proportional to 21,955.32, 30,305.07 and 19,002.90 is: 26,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.32 : 30,305.07 = 19,002.90 : x
  2. Step 2: Convert to fraction form
    21,955.32/30,305.07 = 19,002.90/x
  3. Step 3: Cross multiply
    21,955.32x = 30,305.07 × 19,002.90
  4. Step 4: Simplify right side
    21,955.32x = 575,884,214.70
  5. Step 5: Solve for x
    x = 575,884,214.70/21,955.32
  6. Step 6: Final answer
    x = 26,229.83

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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.