Home / 20,473.71-28,253.64-11,521.22

Finding the Fourth Proportional to 20,473.71, 28,253.64 and 11,521.22

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Solution

The fourth proportional to 20,473.71, 28,253.64 and 11,521.22 is: 15,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.71 : 28,253.64 = 11,521.22 : x
  2. Step 2: Convert to fraction form
    20,473.71/28,253.64 = 11,521.22/x
  3. Step 3: Cross multiply
    20,473.71x = 28,253.64 × 11,521.22
  4. Step 4: Simplify right side
    20,473.71x = 325,516,260.97
  5. Step 5: Solve for x
    x = 325,516,260.97/20,473.71
  6. Step 6: Final answer
    x = 15,899.23

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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.