Home / 31,817.01-47,721.87-8,445.27

Finding the Fourth Proportional to 31,817.01, 47,721.87 and 8,445.27

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Solution

The fourth proportional to 31,817.01, 47,721.87 and 8,445.27 is: 12,666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,817.01 : 47,721.87 = 8,445.27 : x
  2. Step 2: Convert to fraction form
    31,817.01/47,721.87 = 8,445.27/x
  3. Step 3: Cross multiply
    31,817.01x = 47,721.87 × 8,445.27
  4. Step 4: Simplify right side
    31,817.01x = 403,024,077.05
  5. Step 5: Solve for x
    x = 403,024,077.05/31,817.01
  6. Step 6: Final answer
    x = 12,666.94

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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.