Home / 21,971.16-32,907.51-13,187.94

Finding the Fourth Proportional to 21,971.16, 32,907.51 and 13,187.94

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Solution

The fourth proportional to 21,971.16, 32,907.51 and 13,187.94 is: 19,752.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.16 : 32,907.51 = 13,187.94 : x
  2. Step 2: Convert to fraction form
    21,971.16/32,907.51 = 13,187.94/x
  3. Step 3: Cross multiply
    21,971.16x = 32,907.51 × 13,187.94
  4. Step 4: Simplify right side
    21,971.16x = 433,982,267.43
  5. Step 5: Solve for x
    x = 433,982,267.43/21,971.16
  6. Step 6: Final answer
    x = 19,752.36

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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.