Home / 25,965.77-35,821.04-15,890.18

Finding the Fourth Proportional to 25,965.77, 35,821.04 and 15,890.18

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Solution

The fourth proportional to 25,965.77, 35,821.04 and 15,890.18 is: 21,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,965.77 : 35,821.04 = 15,890.18 : x
  2. Step 2: Convert to fraction form
    25,965.77/35,821.04 = 15,890.18/x
  3. Step 3: Cross multiply
    25,965.77x = 35,821.04 × 15,890.18
  4. Step 4: Simplify right side
    25,965.77x = 569,202,514.83
  5. Step 5: Solve for x
    x = 569,202,514.83/25,965.77
  6. Step 6: Final answer
    x = 21,921.27

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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.