Home / 31,618.55-47,427.80-9,447.47

Finding the Fourth Proportional to 31,618.55, 47,427.80 and 9,447.47

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Solution

The fourth proportional to 31,618.55, 47,427.80 and 9,447.47 is: 14,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.55 : 47,427.80 = 9,447.47 : x
  2. Step 2: Convert to fraction form
    31,618.55/47,427.80 = 9,447.47/x
  3. Step 3: Cross multiply
    31,618.55x = 47,427.80 × 9,447.47
  4. Step 4: Simplify right side
    31,618.55x = 448,072,611.14
  5. Step 5: Solve for x
    x = 448,072,611.14/31,618.55
  6. Step 6: Final answer
    x = 14,171.19

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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.