Home / 27,279.23-37,644.95-15,342.56

Finding the Fourth Proportional to 27,279.23, 37,644.95 and 15,342.56

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Solution

The fourth proportional to 27,279.23, 37,644.95 and 15,342.56 is: 21,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.23 : 37,644.95 = 15,342.56 : x
  2. Step 2: Convert to fraction form
    27,279.23/37,644.95 = 15,342.56/x
  3. Step 3: Cross multiply
    27,279.23x = 37,644.95 × 15,342.56
  4. Step 4: Simplify right side
    27,279.23x = 577,570,107.13
  5. Step 5: Solve for x
    x = 577,570,107.13/27,279.23
  6. Step 6: Final answer
    x = 21,172.52

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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.