Home / 20,723.50-31,089.84-7,575.58

Finding the Fourth Proportional to 20,723.50, 31,089.84 and 7,575.58

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Solution

The fourth proportional to 20,723.50, 31,089.84 and 7,575.58 is: 11,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.50 : 31,089.84 = 7,575.58 : x
  2. Step 2: Convert to fraction form
    20,723.50/31,089.84 = 7,575.58/x
  3. Step 3: Cross multiply
    20,723.50x = 31,089.84 × 7,575.58
  4. Step 4: Simplify right side
    20,723.50x = 235,523,570.11
  5. Step 5: Solve for x
    x = 235,523,570.11/20,723.50
  6. Step 6: Final answer
    x = 11,365.05

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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.