Home / 42,835.57-64,167.69-20,008.64

Finding the Fourth Proportional to 42,835.57, 64,167.69 and 20,008.64

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Solution

The fourth proportional to 42,835.57, 64,167.69 and 20,008.64 is: 29,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,835.57 : 64,167.69 = 20,008.64 : x
  2. Step 2: Convert to fraction form
    42,835.57/64,167.69 = 20,008.64/x
  3. Step 3: Cross multiply
    42,835.57x = 64,167.69 × 20,008.64
  4. Step 4: Simplify right side
    42,835.57x = 1,283,908,369.26
  5. Step 5: Solve for x
    x = 1,283,908,369.26/42,835.57
  6. Step 6: Final answer
    x = 29,972.95

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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.