Home / 26,987.84-40,424.88-17,121.92

Finding the Fourth Proportional to 26,987.84, 40,424.88 and 17,121.92

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Solution

The fourth proportional to 26,987.84, 40,424.88 and 17,121.92 is: 25,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.84 : 40,424.88 = 17,121.92 : x
  2. Step 2: Convert to fraction form
    26,987.84/40,424.88 = 17,121.92/x
  3. Step 3: Cross multiply
    26,987.84x = 40,424.88 × 17,121.92
  4. Step 4: Simplify right side
    26,987.84x = 692,151,561.37
  5. Step 5: Solve for x
    x = 692,151,561.37/26,987.84
  6. Step 6: Final answer
    x = 25,646.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.