Home / 28,794.18-39,738.40-16,221.36

Finding the Fourth Proportional to 28,794.18, 39,738.40 and 16,221.36

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Solution

The fourth proportional to 28,794.18, 39,738.40 and 16,221.36 is: 22,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,794.18 : 39,738.40 = 16,221.36 : x
  2. Step 2: Convert to fraction form
    28,794.18/39,738.40 = 16,221.36/x
  3. Step 3: Cross multiply
    28,794.18x = 39,738.40 × 16,221.36
  4. Step 4: Simplify right side
    28,794.18x = 644,610,892.22
  5. Step 5: Solve for x
    x = 644,610,892.22/28,794.18
  6. Step 6: Final answer
    x = 22,386.85

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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.