Home / 21,881.21-32,800.56-17,428.01

Finding the Fourth Proportional to 21,881.21, 32,800.56 and 17,428.01

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Solution

The fourth proportional to 21,881.21, 32,800.56 and 17,428.01 is: 26,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,881.21 : 32,800.56 = 17,428.01 : x
  2. Step 2: Convert to fraction form
    21,881.21/32,800.56 = 17,428.01/x
  3. Step 3: Cross multiply
    21,881.21x = 32,800.56 × 17,428.01
  4. Step 4: Simplify right side
    21,881.21x = 571,648,323.68
  5. Step 5: Solve for x
    x = 571,648,323.68/21,881.21
  6. Step 6: Final answer
    x = 26,125.08

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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.