Home / 27,650.86-38,159.20-15,716.20

Finding the Fourth Proportional to 27,650.86, 38,159.20 and 15,716.20

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Solution

The fourth proportional to 27,650.86, 38,159.20 and 15,716.20 is: 21,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.86 : 38,159.20 = 15,716.20 : x
  2. Step 2: Convert to fraction form
    27,650.86/38,159.20 = 15,716.20/x
  3. Step 3: Cross multiply
    27,650.86x = 38,159.20 × 15,716.20
  4. Step 4: Simplify right side
    27,650.86x = 599,717,619.04
  5. Step 5: Solve for x
    x = 599,717,619.04/27,650.86
  6. Step 6: Final answer
    x = 21,688.93

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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.