Home / 27,317.76-37,694.31-15,378.56

Finding the Fourth Proportional to 27,317.76, 37,694.31 and 15,378.56

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Solution

The fourth proportional to 27,317.76, 37,694.31 and 15,378.56 is: 21,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.76 : 37,694.31 = 15,378.56 : x
  2. Step 2: Convert to fraction form
    27,317.76/37,694.31 = 15,378.56/x
  3. Step 3: Cross multiply
    27,317.76x = 37,694.31 × 15,378.56
  4. Step 4: Simplify right side
    27,317.76x = 579,684,189.71
  5. Step 5: Solve for x
    x = 579,684,189.71/27,317.76
  6. Step 6: Final answer
    x = 21,220.05

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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.