Home / 28,221.05-42,397.20-16,542.47

Finding the Fourth Proportional to 28,221.05, 42,397.20 and 16,542.47

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Solution

The fourth proportional to 28,221.05, 42,397.20 and 16,542.47 is: 24,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.05 : 42,397.20 = 16,542.47 : x
  2. Step 2: Convert to fraction form
    28,221.05/42,397.20 = 16,542.47/x
  3. Step 3: Cross multiply
    28,221.05x = 42,397.20 × 16,542.47
  4. Step 4: Simplify right side
    28,221.05x = 701,354,515.08
  5. Step 5: Solve for x
    x = 701,354,515.08/28,221.05
  6. Step 6: Final answer
    x = 24,852.17

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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.