Home / 25,694.29-35,456.16-15,621.34

Finding the Fourth Proportional to 25,694.29, 35,456.16 and 15,621.34

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Solution

The fourth proportional to 25,694.29, 35,456.16 and 15,621.34 is: 21,556.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,694.29 : 35,456.16 = 15,621.34 : x
  2. Step 2: Convert to fraction form
    25,694.29/35,456.16 = 15,621.34/x
  3. Step 3: Cross multiply
    25,694.29x = 35,456.16 × 15,621.34
  4. Step 4: Simplify right side
    25,694.29x = 553,872,553.17
  5. Step 5: Solve for x
    x = 553,872,553.17/25,694.29
  6. Step 6: Final answer
    x = 21,556.25

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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.