Home / 22,110.47-30,512.13-13,157.74

Finding the Fourth Proportional to 22,110.47, 30,512.13 and 13,157.74

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Solution

The fourth proportional to 22,110.47, 30,512.13 and 13,157.74 is: 18,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.47 : 30,512.13 = 13,157.74 : x
  2. Step 2: Convert to fraction form
    22,110.47/30,512.13 = 13,157.74/x
  3. Step 3: Cross multiply
    22,110.47x = 30,512.13 × 13,157.74
  4. Step 4: Simplify right side
    22,110.47x = 401,470,662.18
  5. Step 5: Solve for x
    x = 401,470,662.18/22,110.47
  6. Step 6: Final answer
    x = 18,157.49

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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.