Home / 20,407.07-30,614.19-7,256.35

Finding the Fourth Proportional to 20,407.07, 30,614.19 and 7,256.35

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Solution

The fourth proportional to 20,407.07, 30,614.19 and 7,256.35 is: 10,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.07 : 30,614.19 = 7,256.35 : x
  2. Step 2: Convert to fraction form
    20,407.07/30,614.19 = 7,256.35/x
  3. Step 3: Cross multiply
    20,407.07x = 30,614.19 × 7,256.35
  4. Step 4: Simplify right side
    20,407.07x = 222,147,288.66
  5. Step 5: Solve for x
    x = 222,147,288.66/20,407.07
  6. Step 6: Final answer
    x = 10,885.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.