Home / 33,128.16-45,717.17-18,021.15

Finding the Fourth Proportional to 33,128.16, 45,717.17 and 18,021.15

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Solution

The fourth proportional to 33,128.16, 45,717.17 and 18,021.15 is: 24,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.16 : 45,717.17 = 18,021.15 : x
  2. Step 2: Convert to fraction form
    33,128.16/45,717.17 = 18,021.15/x
  3. Step 3: Cross multiply
    33,128.16x = 45,717.17 × 18,021.15
  4. Step 4: Simplify right side
    33,128.16x = 823,875,888.04
  5. Step 5: Solve for x
    x = 823,875,888.04/33,128.16
  6. Step 6: Final answer
    x = 24,869.35

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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.