Home / 28,479.78-39,296.10-16,536.96

Finding the Fourth Proportional to 28,479.78, 39,296.10 and 16,536.96

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Solution

The fourth proportional to 28,479.78, 39,296.10 and 16,536.96 is: 22,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.78 : 39,296.10 = 16,536.96 : x
  2. Step 2: Convert to fraction form
    28,479.78/39,296.10 = 16,536.96/x
  3. Step 3: Cross multiply
    28,479.78x = 39,296.10 × 16,536.96
  4. Step 4: Simplify right side
    28,479.78x = 649,838,033.86
  5. Step 5: Solve for x
    x = 649,838,033.86/28,479.78
  6. Step 6: Final answer
    x = 22,817.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.