Home / 28,402.50-39,180.54-21,676.41

Finding the Fourth Proportional to 28,402.50, 39,180.54 and 21,676.41

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Solution

The fourth proportional to 28,402.50, 39,180.54 and 21,676.41 is: 29,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.50 : 39,180.54 = 21,676.41 : x
  2. Step 2: Convert to fraction form
    28,402.50/39,180.54 = 21,676.41/x
  3. Step 3: Cross multiply
    28,402.50x = 39,180.54 × 21,676.41
  4. Step 4: Simplify right side
    28,402.50x = 849,293,449.06
  5. Step 5: Solve for x
    x = 849,293,449.06/28,402.50
  6. Step 6: Final answer
    x = 29,902.07

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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.