Home / 22,215.24-30,627.18-21,527.28

Finding the Fourth Proportional to 22,215.24, 30,627.18 and 21,527.28

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Solution

The fourth proportional to 22,215.24, 30,627.18 and 21,527.28 is: 29,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.24 : 30,627.18 = 21,527.28 : x
  2. Step 2: Convert to fraction form
    22,215.24/30,627.18 = 21,527.28/x
  3. Step 3: Cross multiply
    22,215.24x = 30,627.18 × 21,527.28
  4. Step 4: Simplify right side
    22,215.24x = 659,319,879.47
  5. Step 5: Solve for x
    x = 659,319,879.47/22,215.24
  6. Step 6: Final answer
    x = 29,678.72

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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.