Home / 27,818.29-38,368.13-20,150.36

Finding the Fourth Proportional to 27,818.29, 38,368.13 and 20,150.36

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Solution

The fourth proportional to 27,818.29, 38,368.13 and 20,150.36 is: 27,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.29 : 38,368.13 = 20,150.36 : x
  2. Step 2: Convert to fraction form
    27,818.29/38,368.13 = 20,150.36/x
  3. Step 3: Cross multiply
    27,818.29x = 38,368.13 × 20,150.36
  4. Step 4: Simplify right side
    27,818.29x = 773,131,632.03
  5. Step 5: Solve for x
    x = 773,131,632.03/27,818.29
  6. Step 6: Final answer
    x = 27,792.21

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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.