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Finding the Fourth Proportional to 22,798.13, 31,461.21 and 12,725.91

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Solution

The fourth proportional to 22,798.13, 31,461.21 and 12,725.91 is: 17,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,798.13 : 31,461.21 = 12,725.91 : x
  2. Step 2: Convert to fraction form
    22,798.13/31,461.21 = 12,725.91/x
  3. Step 3: Cross multiply
    22,798.13x = 31,461.21 × 12,725.91
  4. Step 4: Simplify right side
    22,798.13x = 400,372,526.95
  5. Step 5: Solve for x
    x = 400,372,526.95/22,798.13
  6. Step 6: Final answer
    x = 17,561.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.