Home / 20,274.96-30,414.04-7,130.28

Finding the Fourth Proportional to 20,274.96, 30,414.04 and 7,130.28

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Solution

The fourth proportional to 20,274.96, 30,414.04 and 7,130.28 is: 10,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.96 : 30,414.04 = 7,130.28 : x
  2. Step 2: Convert to fraction form
    20,274.96/30,414.04 = 7,130.28/x
  3. Step 3: Cross multiply
    20,274.96x = 30,414.04 × 7,130.28
  4. Step 4: Simplify right side
    20,274.96x = 216,860,603.31
  5. Step 5: Solve for x
    x = 216,860,603.31/20,274.96
  6. Step 6: Final answer
    x = 10,695.98

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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.