Home / 28,540.68-39,386.42-17,210.76

Finding the Fourth Proportional to 28,540.68, 39,386.42 and 17,210.76

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Solution

The fourth proportional to 28,540.68, 39,386.42 and 17,210.76 is: 23,751.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.68 : 39,386.42 = 17,210.76 : x
  2. Step 2: Convert to fraction form
    28,540.68/39,386.42 = 17,210.76/x
  3. Step 3: Cross multiply
    28,540.68x = 39,386.42 × 17,210.76
  4. Step 4: Simplify right side
    28,540.68x = 677,870,221.88
  5. Step 5: Solve for x
    x = 677,870,221.88/28,540.68
  6. Step 6: Final answer
    x = 23,751.02

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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.