Home / 21,268.91-29,391.58-15,954.50

Finding the Fourth Proportional to 21,268.91, 29,391.58 and 15,954.50

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Solution

The fourth proportional to 21,268.91, 29,391.58 and 15,954.50 is: 22,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.91 : 29,391.58 = 15,954.50 : x
  2. Step 2: Convert to fraction form
    21,268.91/29,391.58 = 15,954.50/x
  3. Step 3: Cross multiply
    21,268.91x = 29,391.58 × 15,954.50
  4. Step 4: Simplify right side
    21,268.91x = 468,928,056.53
  5. Step 5: Solve for x
    x = 468,928,056.53/21,268.91
  6. Step 6: Final answer
    x = 22,047.58

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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.