Home / 38,278.93-52,822.78-21,511.93

Finding the Fourth Proportional to 38,278.93, 52,822.78 and 21,511.93

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Solution

The fourth proportional to 38,278.93, 52,822.78 and 21,511.93 is: 29,685.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,278.93 : 52,822.78 = 21,511.93 : x
  2. Step 2: Convert to fraction form
    38,278.93/52,822.78 = 21,511.93/x
  3. Step 3: Cross multiply
    38,278.93x = 52,822.78 × 21,511.93
  4. Step 4: Simplify right side
    38,278.93x = 1,136,319,945.77
  5. Step 5: Solve for x
    x = 1,136,319,945.77/38,278.93
  6. Step 6: Final answer
    x = 29,685.26

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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.