Home / 28,539.92-39,385.22-15,964.68

Finding the Fourth Proportional to 28,539.92, 39,385.22 and 15,964.68

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Solution

The fourth proportional to 28,539.92, 39,385.22 and 15,964.68 is: 22,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.92 : 39,385.22 = 15,964.68 : x
  2. Step 2: Convert to fraction form
    28,539.92/39,385.22 = 15,964.68/x
  3. Step 3: Cross multiply
    28,539.92x = 39,385.22 × 15,964.68
  4. Step 4: Simplify right side
    28,539.92x = 628,772,434.03
  5. Step 5: Solve for x
    x = 628,772,434.03/28,539.92
  6. Step 6: Final answer
    x = 22,031.33

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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.