Home / 22,312.94-30,791.84-12,881.49

Finding the Fourth Proportional to 22,312.94, 30,791.84 and 12,881.49

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Solution

The fourth proportional to 22,312.94, 30,791.84 and 12,881.49 is: 17,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.94 : 30,791.84 = 12,881.49 : x
  2. Step 2: Convert to fraction form
    22,312.94/30,791.84 = 12,881.49/x
  3. Step 3: Cross multiply
    22,312.94x = 30,791.84 × 12,881.49
  4. Step 4: Simplify right side
    22,312.94x = 396,644,714.63
  5. Step 5: Solve for x
    x = 396,644,714.63/22,312.94
  6. Step 6: Final answer
    x = 17,776.45

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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.