Home / 28,289.69-42,434.52-7,229.77

Finding the Fourth Proportional to 28,289.69, 42,434.52 and 7,229.77

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Solution

The fourth proportional to 28,289.69, 42,434.52 and 7,229.77 is: 10,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.69 : 42,434.52 = 7,229.77 : x
  2. Step 2: Convert to fraction form
    28,289.69/42,434.52 = 7,229.77/x
  3. Step 3: Cross multiply
    28,289.69x = 42,434.52 × 7,229.77
  4. Step 4: Simplify right side
    28,289.69x = 306,791,819.66
  5. Step 5: Solve for x
    x = 306,791,819.66/28,289.69
  6. Step 6: Final answer
    x = 10,844.65

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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.