Home / 21,425.64-29,567.78-11,994.18

Finding the Fourth Proportional to 21,425.64, 29,567.78 and 11,994.18

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Solution

The fourth proportional to 21,425.64, 29,567.78 and 11,994.18 is: 16,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.64 : 29,567.78 = 11,994.18 : x
  2. Step 2: Convert to fraction form
    21,425.64/29,567.78 = 11,994.18/x
  3. Step 3: Cross multiply
    21,425.64x = 29,567.78 × 11,994.18
  4. Step 4: Simplify right side
    21,425.64x = 354,641,275.52
  5. Step 5: Solve for x
    x = 354,641,275.52/21,425.64
  6. Step 6: Final answer
    x = 16,552.19

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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.