Home / 28,500.26-42,750.40-7,723.76

Finding the Fourth Proportional to 28,500.26, 42,750.40 and 7,723.76

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Solution

The fourth proportional to 28,500.26, 42,750.40 and 7,723.76 is: 11,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.26 : 42,750.40 = 7,723.76 : x
  2. Step 2: Convert to fraction form
    28,500.26/42,750.40 = 7,723.76/x
  3. Step 3: Cross multiply
    28,500.26x = 42,750.40 × 7,723.76
  4. Step 4: Simplify right side
    28,500.26x = 330,193,829.50
  5. Step 5: Solve for x
    x = 330,193,829.50/28,500.26
  6. Step 6: Final answer
    x = 11,585.64

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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.