Home / 28,243.17-42,365.86-8,521.73

Finding the Fourth Proportional to 28,243.17, 42,365.86 and 8,521.73

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Solution

The fourth proportional to 28,243.17, 42,365.86 and 8,521.73 is: 12,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.17 : 42,365.86 = 8,521.73 : x
  2. Step 2: Convert to fraction form
    28,243.17/42,365.86 = 8,521.73/x
  3. Step 3: Cross multiply
    28,243.17x = 42,365.86 × 8,521.73
  4. Step 4: Simplify right side
    28,243.17x = 361,030,345.88
  5. Step 5: Solve for x
    x = 361,030,345.88/28,243.17
  6. Step 6: Final answer
    x = 12,782.93

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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.