Home / 33,328.47-45,994.16-18,221.77

Finding the Fourth Proportional to 33,328.47, 45,994.16 and 18,221.77

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Solution

The fourth proportional to 33,328.47, 45,994.16 and 18,221.77 is: 25,146.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,328.47 : 45,994.16 = 18,221.77 : x
  2. Step 2: Convert to fraction form
    33,328.47/45,994.16 = 18,221.77/x
  3. Step 3: Cross multiply
    33,328.47x = 45,994.16 × 18,221.77
  4. Step 4: Simplify right side
    33,328.47x = 838,095,107.91
  5. Step 5: Solve for x
    x = 838,095,107.91/33,328.47
  6. Step 6: Final answer
    x = 25,146.52

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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.