Home / 28,574.68-39,425.34-17,388.76

Finding the Fourth Proportional to 28,574.68, 39,425.34 and 17,388.76

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Solution

The fourth proportional to 28,574.68, 39,425.34 and 17,388.76 is: 23,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.68 : 39,425.34 = 17,388.76 : x
  2. Step 2: Convert to fraction form
    28,574.68/39,425.34 = 17,388.76/x
  3. Step 3: Cross multiply
    28,574.68x = 39,425.34 × 17,388.76
  4. Step 4: Simplify right side
    28,574.68x = 685,557,775.18
  5. Step 5: Solve for x
    x = 685,557,775.18/28,574.68
  6. Step 6: Final answer
    x = 23,991.79

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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.