Home / 35,343.11-53,005.92-21,115.47

Finding the Fourth Proportional to 35,343.11, 53,005.92 and 21,115.47

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Solution

The fourth proportional to 35,343.11, 53,005.92 and 21,115.47 is: 31,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,343.11 : 53,005.92 = 21,115.47 : x
  2. Step 2: Convert to fraction form
    35,343.11/53,005.92 = 21,115.47/x
  3. Step 3: Cross multiply
    35,343.11x = 53,005.92 × 21,115.47
  4. Step 4: Simplify right side
    35,343.11x = 1,119,244,913.58
  5. Step 5: Solve for x
    x = 1,119,244,913.58/35,343.11
  6. Step 6: Final answer
    x = 31,667.98

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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.