Home / 31,680.25-47,487.47-10,604.45

Finding the Fourth Proportional to 31,680.25, 47,487.47 and 10,604.45

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Solution

The fourth proportional to 31,680.25, 47,487.47 and 10,604.45 is: 15,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.25 : 47,487.47 = 10,604.45 : x
  2. Step 2: Convert to fraction form
    31,680.25/47,487.47 = 10,604.45/x
  3. Step 3: Cross multiply
    31,680.25x = 47,487.47 × 10,604.45
  4. Step 4: Simplify right side
    31,680.25x = 503,578,566.94
  5. Step 5: Solve for x
    x = 503,578,566.94/31,680.25
  6. Step 6: Final answer
    x = 15,895.66

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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.