Home / 21,673.17-29,909.66-12,242.34

Finding the Fourth Proportional to 21,673.17, 29,909.66 and 12,242.34

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Solution

The fourth proportional to 21,673.17, 29,909.66 and 12,242.34 is: 16,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.17 : 29,909.66 = 12,242.34 : x
  2. Step 2: Convert to fraction form
    21,673.17/29,909.66 = 12,242.34/x
  3. Step 3: Cross multiply
    21,673.17x = 29,909.66 × 12,242.34
  4. Step 4: Simplify right side
    21,673.17x = 366,164,165.79
  5. Step 5: Solve for x
    x = 366,164,165.79/21,673.17
  6. Step 6: Final answer
    x = 16,894.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.