Home / 31,866.53-47,756.73-12,134.32

Finding the Fourth Proportional to 31,866.53, 47,756.73 and 12,134.32

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Solution

The fourth proportional to 31,866.53, 47,756.73 and 12,134.32 is: 18,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866.53 : 47,756.73 = 12,134.32 : x
  2. Step 2: Convert to fraction form
    31,866.53/47,756.73 = 12,134.32/x
  3. Step 3: Cross multiply
    31,866.53x = 47,756.73 × 12,134.32
  4. Step 4: Simplify right side
    31,866.53x = 579,495,443.97
  5. Step 5: Solve for x
    x = 579,495,443.97/31,866.53
  6. Step 6: Final answer
    x = 18,185.08

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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.