Home / 21,331.81-29,435.56-15,033.25

Finding the Fourth Proportional to 21,331.81, 29,435.56 and 15,033.25

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Solution

The fourth proportional to 21,331.81, 29,435.56 and 15,033.25 is: 20,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.81 : 29,435.56 = 15,033.25 : x
  2. Step 2: Convert to fraction form
    21,331.81/29,435.56 = 15,033.25/x
  3. Step 3: Cross multiply
    21,331.81x = 29,435.56 × 15,033.25
  4. Step 4: Simplify right side
    21,331.81x = 442,512,132.37
  5. Step 5: Solve for x
    x = 442,512,132.37/21,331.81
  6. Step 6: Final answer
    x = 20,744.24

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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.