Home / 27,802.97-38,370.86-15,868.11

Finding the Fourth Proportional to 27,802.97, 38,370.86 and 15,868.11

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Solution

The fourth proportional to 27,802.97, 38,370.86 and 15,868.11 is: 21,899.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,802.97 : 38,370.86 = 15,868.11 : x
  2. Step 2: Convert to fraction form
    27,802.97/38,370.86 = 15,868.11/x
  3. Step 3: Cross multiply
    27,802.97x = 38,370.86 × 15,868.11
  4. Step 4: Simplify right side
    27,802.97x = 608,873,027.27
  5. Step 5: Solve for x
    x = 608,873,027.27/27,802.97
  6. Step 6: Final answer
    x = 21,899.57

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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.