Home / 20,403.56-30,596.11-7,256.28

Finding the Fourth Proportional to 20,403.56, 30,596.11 and 7,256.28

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Solution

The fourth proportional to 20,403.56, 30,596.11 and 7,256.28 is: 10,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.56 : 30,596.11 = 7,256.28 : x
  2. Step 2: Convert to fraction form
    20,403.56/30,596.11 = 7,256.28/x
  3. Step 3: Cross multiply
    20,403.56x = 30,596.11 × 7,256.28
  4. Step 4: Simplify right side
    20,403.56x = 222,013,941.07
  5. Step 5: Solve for x
    x = 222,013,941.07/20,403.56
  6. Step 6: Final answer
    x = 10,881.14

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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.