Home / 33,129.77-45,721.01-18,790.17

Finding the Fourth Proportional to 33,129.77, 45,721.01 and 18,790.17

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Solution

The fourth proportional to 33,129.77, 45,721.01 and 18,790.17 is: 25,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.77 : 45,721.01 = 18,790.17 : x
  2. Step 2: Convert to fraction form
    33,129.77/45,721.01 = 18,790.17/x
  3. Step 3: Cross multiply
    33,129.77x = 45,721.01 × 18,790.17
  4. Step 4: Simplify right side
    33,129.77x = 859,105,456.52
  5. Step 5: Solve for x
    x = 859,105,456.52/33,129.77
  6. Step 6: Final answer
    x = 25,931.52

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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.