Home / 31,511.13-47,271.48-10,729.77

Finding the Fourth Proportional to 31,511.13, 47,271.48 and 10,729.77

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Solution

The fourth proportional to 31,511.13, 47,271.48 and 10,729.77 is: 16,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.13 : 47,271.48 = 10,729.77 : x
  2. Step 2: Convert to fraction form
    31,511.13/47,271.48 = 10,729.77/x
  3. Step 3: Cross multiply
    31,511.13x = 47,271.48 × 10,729.77
  4. Step 4: Simplify right side
    31,511.13x = 507,212,107.96
  5. Step 5: Solve for x
    x = 507,212,107.96/31,511.13
  6. Step 6: Final answer
    x = 16,096.28

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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.