Home / 28,834.43-39,732.45-21,268.77

Finding the Fourth Proportional to 28,834.43, 39,732.45 and 21,268.77

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Solution

The fourth proportional to 28,834.43, 39,732.45 and 21,268.77 is: 29,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,834.43 : 39,732.45 = 21,268.77 : x
  2. Step 2: Convert to fraction form
    28,834.43/39,732.45 = 21,268.77/x
  3. Step 3: Cross multiply
    28,834.43x = 39,732.45 × 21,268.77
  4. Step 4: Simplify right side
    28,834.43x = 845,060,340.59
  5. Step 5: Solve for x
    x = 845,060,340.59/28,834.43
  6. Step 6: Final answer
    x = 29,307.34

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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.