Home / 38,403.50-52,997.35-21,636.54

Finding the Fourth Proportional to 38,403.50, 52,997.35 and 21,636.54

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Solution

The fourth proportional to 38,403.50, 52,997.35 and 21,636.54 is: 29,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.50 : 52,997.35 = 21,636.54 : x
  2. Step 2: Convert to fraction form
    38,403.50/52,997.35 = 21,636.54/x
  3. Step 3: Cross multiply
    38,403.50x = 52,997.35 × 21,636.54
  4. Step 4: Simplify right side
    38,403.50x = 1,146,679,283.17
  5. Step 5: Solve for x
    x = 1,146,679,283.17/38,403.50
  6. Step 6: Final answer
    x = 29,858.72

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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.