Home / 27,808.87-38,345.49-17,721.33

Finding the Fourth Proportional to 27,808.87, 38,345.49 and 17,721.33

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Solution

The fourth proportional to 27,808.87, 38,345.49 and 17,721.33 is: 24,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.87 : 38,345.49 = 17,721.33 : x
  2. Step 2: Convert to fraction form
    27,808.87/38,345.49 = 17,721.33/x
  3. Step 3: Cross multiply
    27,808.87x = 38,345.49 × 17,721.33
  4. Step 4: Simplify right side
    27,808.87x = 679,533,082.30
  5. Step 5: Solve for x
    x = 679,533,082.30/27,808.87
  6. Step 6: Final answer
    x = 24,435.84

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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.