Home / 27,278.51-37,638.70-15,945.82

Finding the Fourth Proportional to 27,278.51, 37,638.70 and 15,945.82

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Solution

The fourth proportional to 27,278.51, 37,638.70 and 15,945.82 is: 22,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,278.51 : 37,638.70 = 15,945.82 : x
  2. Step 2: Convert to fraction form
    27,278.51/37,638.70 = 15,945.82/x
  3. Step 3: Cross multiply
    27,278.51x = 37,638.70 × 15,945.82
  4. Step 4: Simplify right side
    27,278.51x = 600,179,935.23
  5. Step 5: Solve for x
    x = 600,179,935.23/27,278.51
  6. Step 6: Final answer
    x = 22,001.93

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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.