Home / 28,385.70-39,166.26-16,448.30

Finding the Fourth Proportional to 28,385.70, 39,166.26 and 16,448.30

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Solution

The fourth proportional to 28,385.70, 39,166.26 and 16,448.30 is: 22,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.70 : 39,166.26 = 16,448.30 : x
  2. Step 2: Convert to fraction form
    28,385.70/39,166.26 = 16,448.30/x
  3. Step 3: Cross multiply
    28,385.70x = 39,166.26 × 16,448.30
  4. Step 4: Simplify right side
    28,385.70x = 644,218,394.36
  5. Step 5: Solve for x
    x = 644,218,394.36/28,385.70
  6. Step 6: Final answer
    x = 22,695.17

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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.