Home / 31,697.76-47,543.79-9,516.09

Finding the Fourth Proportional to 31,697.76, 47,543.79 and 9,516.09

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Solution

The fourth proportional to 31,697.76, 47,543.79 and 9,516.09 is: 14,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,697.76 : 47,543.79 = 9,516.09 : x
  2. Step 2: Convert to fraction form
    31,697.76/47,543.79 = 9,516.09/x
  3. Step 3: Cross multiply
    31,697.76x = 47,543.79 × 9,516.09
  4. Step 4: Simplify right side
    31,697.76x = 452,430,984.58
  5. Step 5: Solve for x
    x = 452,430,984.58/31,697.76
  6. Step 6: Final answer
    x = 14,273.28

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1.5x scale

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.