Home / 22,365.36-30,859.92-15,289.20

Finding the Fourth Proportional to 22,365.36, 30,859.92 and 15,289.20

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Solution

The fourth proportional to 22,365.36, 30,859.92 and 15,289.20 is: 21,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,365.36 : 30,859.92 = 15,289.20 : x
  2. Step 2: Convert to fraction form
    22,365.36/30,859.92 = 15,289.20/x
  3. Step 3: Cross multiply
    22,365.36x = 30,859.92 × 15,289.20
  4. Step 4: Simplify right side
    22,365.36x = 471,823,488.86
  5. Step 5: Solve for x
    x = 471,823,488.86/22,365.36
  6. Step 6: Final answer
    x = 21,096.17

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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.