Home / 22,031.79-30,403.89-11,960.24

Finding the Fourth Proportional to 22,031.79, 30,403.89 and 11,960.24

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Solution

The fourth proportional to 22,031.79, 30,403.89 and 11,960.24 is: 16,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.79 : 30,403.89 = 11,960.24 : x
  2. Step 2: Convert to fraction form
    22,031.79/30,403.89 = 11,960.24/x
  3. Step 3: Cross multiply
    22,031.79x = 30,403.89 × 11,960.24
  4. Step 4: Simplify right side
    22,031.79x = 363,637,821.33
  5. Step 5: Solve for x
    x = 363,637,821.33/22,031.79
  6. Step 6: Final answer
    x = 16,505.14

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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.