Home / 28,834.30-39,732.28-21,268.66

Finding the Fourth Proportional to 28,834.30, 39,732.28 and 21,268.66

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Solution

The fourth proportional to 28,834.30, 39,732.28 and 21,268.66 is: 29,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,834.30 : 39,732.28 = 21,268.66 : x
  2. Step 2: Convert to fraction form
    28,834.30/39,732.28 = 21,268.66/x
  3. Step 3: Cross multiply
    28,834.30x = 39,732.28 × 21,268.66
  4. Step 4: Simplify right side
    28,834.30x = 845,052,354.34
  5. Step 5: Solve for x
    x = 845,052,354.34/28,834.30
  6. Step 6: Final answer
    x = 29,307.19

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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.