Home / 22,615.28-31,224.48-14,120.72

Finding the Fourth Proportional to 22,615.28, 31,224.48 and 14,120.72

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Solution

The fourth proportional to 22,615.28, 31,224.48 and 14,120.72 is: 19,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.28 : 31,224.48 = 14,120.72 : x
  2. Step 2: Convert to fraction form
    22,615.28/31,224.48 = 14,120.72/x
  3. Step 3: Cross multiply
    22,615.28x = 31,224.48 × 14,120.72
  4. Step 4: Simplify right side
    22,615.28x = 440,912,139.23
  5. Step 5: Solve for x
    x = 440,912,139.23/22,615.28
  6. Step 6: Final answer
    x = 19,496.21

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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.