Home / 28,976.24-39,968.16-22,677.68

Finding the Fourth Proportional to 28,976.24, 39,968.16 and 22,677.68

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Solution

The fourth proportional to 28,976.24, 39,968.16 and 22,677.68 is: 31,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.24 : 39,968.16 = 22,677.68 : x
  2. Step 2: Convert to fraction form
    28,976.24/39,968.16 = 22,677.68/x
  3. Step 3: Cross multiply
    28,976.24x = 39,968.16 × 22,677.68
  4. Step 4: Simplify right side
    28,976.24x = 906,385,142.67
  5. Step 5: Solve for x
    x = 906,385,142.67/28,976.24
  6. Step 6: Final answer
    x = 31,280.29

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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.