Home / 27,356.12-37,748.58-15,421.28

Finding the Fourth Proportional to 27,356.12, 37,748.58 and 15,421.28

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Solution

The fourth proportional to 27,356.12, 37,748.58 and 15,421.28 is: 21,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.12 : 37,748.58 = 15,421.28 : x
  2. Step 2: Convert to fraction form
    27,356.12/37,748.58 = 15,421.28/x
  3. Step 3: Cross multiply
    27,356.12x = 37,748.58 × 15,421.28
  4. Step 4: Simplify right side
    27,356.12x = 582,131,421.78
  5. Step 5: Solve for x
    x = 582,131,421.78/27,356.12
  6. Step 6: Final answer
    x = 21,279.75

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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.