Home / 21,290.16-31,954.92-10,767.63

Finding the Fourth Proportional to 21,290.16, 31,954.92 and 10,767.63

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Solution

The fourth proportional to 21,290.16, 31,954.92 and 10,767.63 is: 16,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290.16 : 31,954.92 = 10,767.63 : x
  2. Step 2: Convert to fraction form
    21,290.16/31,954.92 = 10,767.63/x
  3. Step 3: Cross multiply
    21,290.16x = 31,954.92 × 10,767.63
  4. Step 4: Simplify right side
    21,290.16x = 344,078,755.24
  5. Step 5: Solve for x
    x = 344,078,755.24/21,290.16
  6. Step 6: Final answer
    x = 16,161.40

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1.5x scale

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.