Home / 21,426.02-29,568.54-11,994.58

Finding the Fourth Proportional to 21,426.02, 29,568.54 and 11,994.58

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Solution

The fourth proportional to 21,426.02, 29,568.54 and 11,994.58 is: 16,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.02 : 29,568.54 = 11,994.58 : x
  2. Step 2: Convert to fraction form
    21,426.02/29,568.54 = 11,994.58/x
  3. Step 3: Cross multiply
    21,426.02x = 29,568.54 × 11,994.58
  4. Step 4: Simplify right side
    21,426.02x = 354,662,300.45
  5. Step 5: Solve for x
    x = 354,662,300.45/21,426.02
  6. Step 6: Final answer
    x = 16,552.88

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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.