Home / 20,222.58-30,343.50-9,132.72

Finding the Fourth Proportional to 20,222.58, 30,343.50 and 9,132.72

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Solution

The fourth proportional to 20,222.58, 30,343.50 and 9,132.72 is: 13,703.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.58 : 30,343.50 = 9,132.72 : x
  2. Step 2: Convert to fraction form
    20,222.58/30,343.50 = 9,132.72/x
  3. Step 3: Cross multiply
    20,222.58x = 30,343.50 × 9,132.72
  4. Step 4: Simplify right side
    20,222.58x = 277,118,689.32
  5. Step 5: Solve for x
    x = 277,118,689.32/20,222.58
  6. Step 6: Final answer
    x = 13,703.43

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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.