Home / 20,406.08-30,615.27-7,256.74

Finding the Fourth Proportional to 20,406.08, 30,615.27 and 7,256.74

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Solution

The fourth proportional to 20,406.08, 30,615.27 and 7,256.74 is: 10,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.08 : 30,615.27 = 7,256.74 : x
  2. Step 2: Convert to fraction form
    20,406.08/30,615.27 = 7,256.74/x
  3. Step 3: Cross multiply
    20,406.08x = 30,615.27 × 7,256.74
  4. Step 4: Simplify right side
    20,406.08x = 222,167,008.07
  5. Step 5: Solve for x
    x = 222,167,008.07/20,406.08
  6. Step 6: Final answer
    x = 10,887.30

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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.