Home / 19,812.24-27,340.88-11,428.74

Finding the Fourth Proportional to 19,812.24, 27,340.88 and 11,428.74

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Solution

The fourth proportional to 19,812.24, 27,340.88 and 11,428.74 is: 15,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.24 : 27,340.88 = 11,428.74 : x
  2. Step 2: Convert to fraction form
    19,812.24/27,340.88 = 11,428.74/x
  3. Step 3: Cross multiply
    19,812.24x = 27,340.88 × 11,428.74
  4. Step 4: Simplify right side
    19,812.24x = 312,471,751.75
  5. Step 5: Solve for x
    x = 312,471,751.75/19,812.24
  6. Step 6: Final answer
    x = 15,771.65

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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.