Home / 21,568.69-32,358.40-17,143.05

Finding the Fourth Proportional to 21,568.69, 32,358.40 and 17,143.05

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Solution

The fourth proportional to 21,568.69, 32,358.40 and 17,143.05 is: 25,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.69 : 32,358.40 = 17,143.05 : x
  2. Step 2: Convert to fraction form
    21,568.69/32,358.40 = 17,143.05/x
  3. Step 3: Cross multiply
    21,568.69x = 32,358.40 × 17,143.05
  4. Step 4: Simplify right side
    21,568.69x = 554,721,669.12
  5. Step 5: Solve for x
    x = 554,721,669.12/21,568.69
  6. Step 6: Final answer
    x = 25,718.85

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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.