Home / 25,821.60-35,618.32-15,868.32

Finding the Fourth Proportional to 25,821.60, 35,618.32 and 15,868.32

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Solution

The fourth proportional to 25,821.60, 35,618.32 and 15,868.32 is: 21,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.60 : 35,618.32 = 15,868.32 : x
  2. Step 2: Convert to fraction form
    25,821.60/35,618.32 = 15,868.32/x
  3. Step 3: Cross multiply
    25,821.60x = 35,618.32 × 15,868.32
  4. Step 4: Simplify right side
    25,821.60x = 565,202,899.62
  5. Step 5: Solve for x
    x = 565,202,899.62/25,821.60
  6. Step 6: Final answer
    x = 21,888.76

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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.