Home / 21,639.97-32,403.33-17,400.70

Finding the Fourth Proportional to 21,639.97, 32,403.33 and 17,400.70

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Solution

The fourth proportional to 21,639.97, 32,403.33 and 17,400.70 is: 26,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.97 : 32,403.33 = 17,400.70 : x
  2. Step 2: Convert to fraction form
    21,639.97/32,403.33 = 17,400.70/x
  3. Step 3: Cross multiply
    21,639.97x = 32,403.33 × 17,400.70
  4. Step 4: Simplify right side
    21,639.97x = 563,840,624.33
  5. Step 5: Solve for x
    x = 563,840,624.33/21,639.97
  6. Step 6: Final answer
    x = 26,055.52

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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.