Home / 38,838.31-58,269.70-13,877.80

Finding the Fourth Proportional to 38,838.31, 58,269.70 and 13,877.80

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Solution

The fourth proportional to 38,838.31, 58,269.70 and 13,877.80 is: 20,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,838.31 : 58,269.70 = 13,877.80 : x
  2. Step 2: Convert to fraction form
    38,838.31/58,269.70 = 13,877.80/x
  3. Step 3: Cross multiply
    38,838.31x = 58,269.70 × 13,877.80
  4. Step 4: Simplify right side
    38,838.31x = 808,655,114.33
  5. Step 5: Solve for x
    x = 808,655,114.33/38,838.31
  6. Step 6: Final answer
    x = 20,821.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.