Home / 27,807.87-38,344.11-17,720.33

Finding the Fourth Proportional to 27,807.87, 38,344.11 and 17,720.33

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Solution

The fourth proportional to 27,807.87, 38,344.11 and 17,720.33 is: 24,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.87 : 38,344.11 = 17,720.33 : x
  2. Step 2: Convert to fraction form
    27,807.87/38,344.11 = 17,720.33/x
  3. Step 3: Cross multiply
    27,807.87x = 38,344.11 × 17,720.33
  4. Step 4: Simplify right side
    27,807.87x = 679,470,290.11
  5. Step 5: Solve for x
    x = 679,470,290.11/27,807.87
  6. Step 6: Final answer
    x = 24,434.46

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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.