Home / 33,142.76-45,721.86-19,706.36

Finding the Fourth Proportional to 33,142.76, 45,721.86 and 19,706.36

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Solution

The fourth proportional to 33,142.76, 45,721.86 and 19,706.36 is: 27,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,142.76 : 45,721.86 = 19,706.36 : x
  2. Step 2: Convert to fraction form
    33,142.76/45,721.86 = 19,706.36/x
  3. Step 3: Cross multiply
    33,142.76x = 45,721.86 × 19,706.36
  4. Step 4: Simplify right side
    33,142.76x = 901,011,204.42
  5. Step 5: Solve for x
    x = 901,011,204.42/33,142.76
  6. Step 6: Final answer
    x = 27,185.77

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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.