Home / 31,940.16-47,877.60-11,146.56

Finding the Fourth Proportional to 31,940.16, 47,877.60 and 11,146.56

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Solution

The fourth proportional to 31,940.16, 47,877.60 and 11,146.56 is: 16,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.16 : 47,877.60 = 11,146.56 : x
  2. Step 2: Convert to fraction form
    31,940.16/47,877.60 = 11,146.56/x
  3. Step 3: Cross multiply
    31,940.16x = 47,877.60 × 11,146.56
  4. Step 4: Simplify right side
    31,940.16x = 533,670,541.06
  5. Step 5: Solve for x
    x = 533,670,541.06/31,940.16
  6. Step 6: Final answer
    x = 16,708.45

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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.