Home / 21,448.89-29,600.10-12,017.25

Finding the Fourth Proportional to 21,448.89, 29,600.10 and 12,017.25

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Solution

The fourth proportional to 21,448.89, 29,600.10 and 12,017.25 is: 16,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.89 : 29,600.10 = 12,017.25 : x
  2. Step 2: Convert to fraction form
    21,448.89/29,600.10 = 12,017.25/x
  3. Step 3: Cross multiply
    21,448.89x = 29,600.10 × 12,017.25
  4. Step 4: Simplify right side
    21,448.89x = 355,711,801.73
  5. Step 5: Solve for x
    x = 355,711,801.73/21,448.89
  6. Step 6: Final answer
    x = 16,584.16

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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.