Home / 31,363.35-47,045.30-7,989.77

Finding the Fourth Proportional to 31,363.35, 47,045.30 and 7,989.77

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Solution

The fourth proportional to 31,363.35, 47,045.30 and 7,989.77 is: 11,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,363.35 : 47,045.30 = 7,989.77 : x
  2. Step 2: Convert to fraction form
    31,363.35/47,045.30 = 7,989.77/x
  3. Step 3: Cross multiply
    31,363.35x = 47,045.30 × 7,989.77
  4. Step 4: Simplify right side
    31,363.35x = 375,880,851.41
  5. Step 5: Solve for x
    x = 375,880,851.41/31,363.35
  6. Step 6: Final answer
    x = 11,984.72

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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.