Home / 21,771.51-30,044.69-12,340.14

Finding the Fourth Proportional to 21,771.51, 30,044.69 and 12,340.14

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Solution

The fourth proportional to 21,771.51, 30,044.69 and 12,340.14 is: 17,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,771.51 : 30,044.69 = 12,340.14 : x
  2. Step 2: Convert to fraction form
    21,771.51/30,044.69 = 12,340.14/x
  3. Step 3: Cross multiply
    21,771.51x = 30,044.69 × 12,340.14
  4. Step 4: Simplify right side
    21,771.51x = 370,755,680.86
  5. Step 5: Solve for x
    x = 370,755,680.86/21,771.51
  6. Step 6: Final answer
    x = 17,029.40

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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.