Home / 27,861.52-38,448.77-15,114.71

Finding the Fourth Proportional to 27,861.52, 38,448.77 and 15,114.71

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Solution

The fourth proportional to 27,861.52, 38,448.77 and 15,114.71 is: 20,858.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.52 : 38,448.77 = 15,114.71 : x
  2. Step 2: Convert to fraction form
    27,861.52/38,448.77 = 15,114.71/x
  3. Step 3: Cross multiply
    27,861.52x = 38,448.77 × 15,114.71
  4. Step 4: Simplify right side
    27,861.52x = 581,141,812.68
  5. Step 5: Solve for x
    x = 581,141,812.68/27,861.52
  6. Step 6: Final answer
    x = 20,858.22

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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.