Home / 31,386.21-47,079.29-8,012.66

Finding the Fourth Proportional to 31,386.21, 47,079.29 and 8,012.66

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Solution

The fourth proportional to 31,386.21, 47,079.29 and 8,012.66 is: 12,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.21 : 47,079.29 = 8,012.66 : x
  2. Step 2: Convert to fraction form
    31,386.21/47,079.29 = 8,012.66/x
  3. Step 3: Cross multiply
    31,386.21x = 47,079.29 × 8,012.66
  4. Step 4: Simplify right side
    31,386.21x = 377,230,068.35
  5. Step 5: Solve for x
    x = 377,230,068.35/31,386.21
  6. Step 6: Final answer
    x = 12,018.97

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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.