Home / 27,930.66-38,544.05-20,792.51

Finding the Fourth Proportional to 27,930.66, 38,544.05 and 20,792.51

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Solution

The fourth proportional to 27,930.66, 38,544.05 and 20,792.51 is: 28,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930.66 : 38,544.05 = 20,792.51 : x
  2. Step 2: Convert to fraction form
    27,930.66/38,544.05 = 20,792.51/x
  3. Step 3: Cross multiply
    27,930.66x = 38,544.05 × 20,792.51
  4. Step 4: Simplify right side
    27,930.66x = 801,427,248.38
  5. Step 5: Solve for x
    x = 801,427,248.38/27,930.66
  6. Step 6: Final answer
    x = 28,693.46

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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.