Home / 33,129.22-45,717.51-18,981.16

Finding the Fourth Proportional to 33,129.22, 45,717.51 and 18,981.16

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Solution

The fourth proportional to 33,129.22, 45,717.51 and 18,981.16 is: 26,193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.22 : 45,717.51 = 18,981.16 : x
  2. Step 2: Convert to fraction form
    33,129.22/45,717.51 = 18,981.16/x
  3. Step 3: Cross multiply
    33,129.22x = 45,717.51 × 18,981.16
  4. Step 4: Simplify right side
    33,129.22x = 867,771,372.11
  5. Step 5: Solve for x
    x = 867,771,372.11/33,129.22
  6. Step 6: Final answer
    x = 26,193.53

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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.