Home / 28,645.14-39,520.80-17,318.10

Finding the Fourth Proportional to 28,645.14, 39,520.80 and 17,318.10

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Solution

The fourth proportional to 28,645.14, 39,520.80 and 17,318.10 is: 23,893.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.14 : 39,520.80 = 17,318.10 : x
  2. Step 2: Convert to fraction form
    28,645.14/39,520.80 = 17,318.10/x
  3. Step 3: Cross multiply
    28,645.14x = 39,520.80 × 17,318.10
  4. Step 4: Simplify right side
    28,645.14x = 684,425,166.48
  5. Step 5: Solve for x
    x = 684,425,166.48/28,645.14
  6. Step 6: Final answer
    x = 23,893.24

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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.