Home / 21,204.90-31,808.02-10,669.16

Finding the Fourth Proportional to 21,204.90, 31,808.02 and 10,669.16

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Solution

The fourth proportional to 21,204.90, 31,808.02 and 10,669.16 is: 16,004.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.90 : 31,808.02 = 10,669.16 : x
  2. Step 2: Convert to fraction form
    21,204.90/31,808.02 = 10,669.16/x
  3. Step 3: Cross multiply
    21,204.90x = 31,808.02 × 10,669.16
  4. Step 4: Simplify right side
    21,204.90x = 339,364,854.66
  5. Step 5: Solve for x
    x = 339,364,854.66/21,204.90
  6. Step 6: Final answer
    x = 16,004.08

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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.