Home / 33,139.13-45,731.99-18,235.13

Finding the Fourth Proportional to 33,139.13, 45,731.99 and 18,235.13

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Solution

The fourth proportional to 33,139.13, 45,731.99 and 18,235.13 is: 25,164.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.13 : 45,731.99 = 18,235.13 : x
  2. Step 2: Convert to fraction form
    33,139.13/45,731.99 = 18,235.13/x
  3. Step 3: Cross multiply
    33,139.13x = 45,731.99 × 18,235.13
  4. Step 4: Simplify right side
    33,139.13x = 833,928,599.74
  5. Step 5: Solve for x
    x = 833,928,599.74/33,139.13
  6. Step 6: Final answer
    x = 25,164.47

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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.