Home / 21,791.16-30,073.30-12,360.32

Finding the Fourth Proportional to 21,791.16, 30,073.30 and 12,360.32

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Solution

The fourth proportional to 21,791.16, 30,073.30 and 12,360.32 is: 17,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791.16 : 30,073.30 = 12,360.32 : x
  2. Step 2: Convert to fraction form
    21,791.16/30,073.30 = 12,360.32/x
  3. Step 3: Cross multiply
    21,791.16x = 30,073.30 × 12,360.32
  4. Step 4: Simplify right side
    21,791.16x = 371,715,611.46
  5. Step 5: Solve for x
    x = 371,715,611.46/21,791.16
  6. Step 6: Final answer
    x = 17,058.09

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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.