Home / 27,774.13-38,288.43-19,802.51

Finding the Fourth Proportional to 27,774.13, 38,288.43 and 19,802.51

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Solution

The fourth proportional to 27,774.13, 38,288.43 and 19,802.51 is: 27,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,774.13 : 38,288.43 = 19,802.51 : x
  2. Step 2: Convert to fraction form
    27,774.13/38,288.43 = 19,802.51/x
  3. Step 3: Cross multiply
    27,774.13x = 38,288.43 × 19,802.51
  4. Step 4: Simplify right side
    27,774.13x = 758,207,039.42
  5. Step 5: Solve for x
    x = 758,207,039.42/27,774.13
  6. Step 6: Final answer
    x = 27,299.04

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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.