Home / 21,744.25-30,006.17-12,670.48

Finding the Fourth Proportional to 21,744.25, 30,006.17 and 12,670.48

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Solution

The fourth proportional to 21,744.25, 30,006.17 and 12,670.48 is: 17,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.25 : 30,006.17 = 12,670.48 : x
  2. Step 2: Convert to fraction form
    21,744.25/30,006.17 = 12,670.48/x
  3. Step 3: Cross multiply
    21,744.25x = 30,006.17 × 12,670.48
  4. Step 4: Simplify right side
    21,744.25x = 380,192,465.38
  5. Step 5: Solve for x
    x = 380,192,465.38/21,744.25
  6. Step 6: Final answer
    x = 17,484.74

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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.