Home / 28,357.54-39,137.34-16,424.62

Finding the Fourth Proportional to 28,357.54, 39,137.34 and 16,424.62

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Solution

The fourth proportional to 28,357.54, 39,137.34 and 16,424.62 is: 22,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.54 : 39,137.34 = 16,424.62 : x
  2. Step 2: Convert to fraction form
    28,357.54/39,137.34 = 16,424.62/x
  3. Step 3: Cross multiply
    28,357.54x = 39,137.34 × 16,424.62
  4. Step 4: Simplify right side
    28,357.54x = 642,815,937.31
  5. Step 5: Solve for x
    x = 642,815,937.31/28,357.54
  6. Step 6: Final answer
    x = 22,668.25

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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.