Home / 31,691.68-47,513.93-19,208.62

Finding the Fourth Proportional to 31,691.68, 47,513.93 and 19,208.62

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Solution

The fourth proportional to 31,691.68, 47,513.93 and 19,208.62 is: 28,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,691.68 : 47,513.93 = 19,208.62 : x
  2. Step 2: Convert to fraction form
    31,691.68/47,513.93 = 19,208.62/x
  3. Step 3: Cross multiply
    31,691.68x = 47,513.93 × 19,208.62
  4. Step 4: Simplify right side
    31,691.68x = 912,677,026.08
  5. Step 5: Solve for x
    x = 912,677,026.08/31,691.68
  6. Step 6: Final answer
    x = 28,798.63

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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.