Home / 21,376.40-32,066.40-5,583.51

Finding the Fourth Proportional to 21,376.40, 32,066.40 and 5,583.51

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Solution

The fourth proportional to 21,376.40, 32,066.40 and 5,583.51 is: 8,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.40 : 32,066.40 = 5,583.51 : x
  2. Step 2: Convert to fraction form
    21,376.40/32,066.40 = 5,583.51/x
  3. Step 3: Cross multiply
    21,376.40x = 32,066.40 × 5,583.51
  4. Step 4: Simplify right side
    21,376.40x = 179,043,065.06
  5. Step 5: Solve for x
    x = 179,043,065.06/21,376.40
  6. Step 6: Final answer
    x = 8,375.74

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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.