Home / 20,559.15-30,820.23-7,402.32

Finding the Fourth Proportional to 20,559.15, 30,820.23 and 7,402.32

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Solution

The fourth proportional to 20,559.15, 30,820.23 and 7,402.32 is: 11,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.15 : 30,820.23 = 7,402.32 : x
  2. Step 2: Convert to fraction form
    20,559.15/30,820.23 = 7,402.32/x
  3. Step 3: Cross multiply
    20,559.15x = 30,820.23 × 7,402.32
  4. Step 4: Simplify right side
    20,559.15x = 228,141,204.93
  5. Step 5: Solve for x
    x = 228,141,204.93/20,559.15
  6. Step 6: Final answer
    x = 11,096.82

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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.