Home / 27,774.07-38,288.34-19,802.45

Finding the Fourth Proportional to 27,774.07, 38,288.34 and 19,802.45

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Solution

The fourth proportional to 27,774.07, 38,288.34 and 19,802.45 is: 27,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,774.07 : 38,288.34 = 19,802.45 : x
  2. Step 2: Convert to fraction form
    27,774.07/38,288.34 = 19,802.45/x
  3. Step 3: Cross multiply
    27,774.07x = 38,288.34 × 19,802.45
  4. Step 4: Simplify right side
    27,774.07x = 758,202,938.43
  5. Step 5: Solve for x
    x = 758,202,938.43/27,774.07
  6. Step 6: Final answer
    x = 27,298.95

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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.