Home / 20,448.90-28,222.47-11,497.14

Finding the Fourth Proportional to 20,448.90, 28,222.47 and 11,497.14

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Solution

The fourth proportional to 20,448.90, 28,222.47 and 11,497.14 is: 15,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.90 : 28,222.47 = 11,497.14 : x
  2. Step 2: Convert to fraction form
    20,448.90/28,222.47 = 11,497.14/x
  3. Step 3: Cross multiply
    20,448.90x = 28,222.47 × 11,497.14
  4. Step 4: Simplify right side
    20,448.90x = 324,477,688.74
  5. Step 5: Solve for x
    x = 324,477,688.74/20,448.90
  6. Step 6: Final answer
    x = 15,867.73

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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.