Home / 27,905.95-38,508.22-15,802.97

Finding the Fourth Proportional to 27,905.95, 38,508.22 and 15,802.97

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Solution

The fourth proportional to 27,905.95, 38,508.22 and 15,802.97 is: 21,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.95 : 38,508.22 = 15,802.97 : x
  2. Step 2: Convert to fraction form
    27,905.95/38,508.22 = 15,802.97/x
  3. Step 3: Cross multiply
    27,905.95x = 38,508.22 × 15,802.97
  4. Step 4: Simplify right side
    27,905.95x = 608,544,072.63
  5. Step 5: Solve for x
    x = 608,544,072.63/27,905.95
  6. Step 6: Final answer
    x = 21,806.96

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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.