Home / 21,417.25-32,127.90-7,376.71

Finding the Fourth Proportional to 21,417.25, 32,127.90 and 7,376.71

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Solution

The fourth proportional to 21,417.25, 32,127.90 and 7,376.71 is: 11,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.25 : 32,127.90 = 7,376.71 : x
  2. Step 2: Convert to fraction form
    21,417.25/32,127.90 = 7,376.71/x
  3. Step 3: Cross multiply
    21,417.25x = 32,127.90 × 7,376.71
  4. Step 4: Simplify right side
    21,417.25x = 236,998,201.21
  5. Step 5: Solve for x
    x = 236,998,201.21/21,417.25
  6. Step 6: Final answer
    x = 11,065.76

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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.