Home / 22,068.99-30,459.24-13,121.60

Finding the Fourth Proportional to 22,068.99, 30,459.24 and 13,121.60

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Solution

The fourth proportional to 22,068.99, 30,459.24 and 13,121.60 is: 18,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,068.99 : 30,459.24 = 13,121.60 : x
  2. Step 2: Convert to fraction form
    22,068.99/30,459.24 = 13,121.60/x
  3. Step 3: Cross multiply
    22,068.99x = 30,459.24 × 13,121.60
  4. Step 4: Simplify right side
    22,068.99x = 399,673,811.29
  5. Step 5: Solve for x
    x = 399,673,811.29/22,068.99
  6. Step 6: Final answer
    x = 18,110.20

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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.