Home / 31,602.12-47,427.66-11,898.60

Finding the Fourth Proportional to 31,602.12, 47,427.66 and 11,898.60

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Solution

The fourth proportional to 31,602.12, 47,427.66 and 11,898.60 is: 17,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,602.12 : 47,427.66 = 11,898.60 : x
  2. Step 2: Convert to fraction form
    31,602.12/47,427.66 = 11,898.60/x
  3. Step 3: Cross multiply
    31,602.12x = 47,427.66 × 11,898.60
  4. Step 4: Simplify right side
    31,602.12x = 564,322,755.28
  5. Step 5: Solve for x
    x = 564,322,755.28/31,602.12
  6. Step 6: Final answer
    x = 17,857.12

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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.