Home / 33,340.56-45,973.28-21,399.36

Finding the Fourth Proportional to 33,340.56, 45,973.28 and 21,399.36

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Solution

The fourth proportional to 33,340.56, 45,973.28 and 21,399.36 is: 29,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,340.56 : 45,973.28 = 21,399.36 : x
  2. Step 2: Convert to fraction form
    33,340.56/45,973.28 = 21,399.36/x
  3. Step 3: Cross multiply
    33,340.56x = 45,973.28 × 21,399.36
  4. Step 4: Simplify right side
    33,340.56x = 983,798,769.10
  5. Step 5: Solve for x
    x = 983,798,769.10/33,340.56
  6. Step 6: Final answer
    x = 29,507.57

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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.