Home / 38,345.80-52,915.24-21,579.88

Finding the Fourth Proportional to 38,345.80, 52,915.24 and 21,579.88

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Solution

The fourth proportional to 38,345.80, 52,915.24 and 21,579.88 is: 29,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.80 : 52,915.24 = 21,579.88 : x
  2. Step 2: Convert to fraction form
    38,345.80/52,915.24 = 21,579.88/x
  3. Step 3: Cross multiply
    38,345.80x = 52,915.24 × 21,579.88
  4. Step 4: Simplify right side
    38,345.80x = 1,141,904,529.37
  5. Step 5: Solve for x
    x = 1,141,904,529.37/38,345.80
  6. Step 6: Final answer
    x = 29,779.13

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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.