Home / 35,091.18-48,428.13-19,781.51

Finding the Fourth Proportional to 35,091.18, 48,428.13 and 19,781.51

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Solution

The fourth proportional to 35,091.18, 48,428.13 and 19,781.51 is: 27,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,091.18 : 48,428.13 = 19,781.51 : x
  2. Step 2: Convert to fraction form
    35,091.18/48,428.13 = 19,781.51/x
  3. Step 3: Cross multiply
    35,091.18x = 48,428.13 × 19,781.51
  4. Step 4: Simplify right side
    35,091.18x = 957,981,295.74
  5. Step 5: Solve for x
    x = 957,981,295.74/35,091.18
  6. Step 6: Final answer
    x = 27,299.77

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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.