Home / 29,121.30-40,172.49-18,926.64

Finding the Fourth Proportional to 29,121.30, 40,172.49 and 18,926.64

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Solution

The fourth proportional to 29,121.30, 40,172.49 and 18,926.64 is: 26,109.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.30 : 40,172.49 = 18,926.64 : x
  2. Step 2: Convert to fraction form
    29,121.30/40,172.49 = 18,926.64/x
  3. Step 3: Cross multiply
    29,121.30x = 40,172.49 × 18,926.64
  4. Step 4: Simplify right side
    29,121.30x = 760,330,256.13
  5. Step 5: Solve for x
    x = 760,330,256.13/29,121.30
  6. Step 6: Final answer
    x = 26,109.08

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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.