Home / 28,835.18-39,733.49-21,269.54

Finding the Fourth Proportional to 28,835.18, 39,733.49 and 21,269.54

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Solution

The fourth proportional to 28,835.18, 39,733.49 and 21,269.54 is: 29,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.18 : 39,733.49 = 21,269.54 : x
  2. Step 2: Convert to fraction form
    28,835.18/39,733.49 = 21,269.54/x
  3. Step 3: Cross multiply
    28,835.18x = 39,733.49 × 21,269.54
  4. Step 4: Simplify right side
    28,835.18x = 845,113,207.40
  5. Step 5: Solve for x
    x = 845,113,207.40/28,835.18
  6. Step 6: Final answer
    x = 29,308.41

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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.