Home / 22,615.37-31,188.78-14,118.28

Finding the Fourth Proportional to 22,615.37, 31,188.78 and 14,118.28

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Solution

The fourth proportional to 22,615.37, 31,188.78 and 14,118.28 is: 19,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.37 : 31,188.78 = 14,118.28 : x
  2. Step 2: Convert to fraction form
    22,615.37/31,188.78 = 14,118.28/x
  3. Step 3: Cross multiply
    22,615.37x = 31,188.78 × 14,118.28
  4. Step 4: Simplify right side
    22,615.37x = 440,332,020.14
  5. Step 5: Solve for x
    x = 440,332,020.14/22,615.37
  6. Step 6: Final answer
    x = 19,470.47

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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.