Home / 38,398.91-52,988.79-21,405.01

Finding the Fourth Proportional to 38,398.91, 52,988.79 and 21,405.01

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Solution

The fourth proportional to 38,398.91, 52,988.79 and 21,405.01 is: 29,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.91 : 52,988.79 = 21,405.01 : x
  2. Step 2: Convert to fraction form
    38,398.91/52,988.79 = 21,405.01/x
  3. Step 3: Cross multiply
    38,398.91x = 52,988.79 × 21,405.01
  4. Step 4: Simplify right side
    38,398.91x = 1,134,225,579.84
  5. Step 5: Solve for x
    x = 1,134,225,579.84/38,398.91
  6. Step 6: Final answer
    x = 29,537.96

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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.