Home / 31,436.94-47,140.82-18,293.08

Finding the Fourth Proportional to 31,436.94, 47,140.82 and 18,293.08

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Solution

The fourth proportional to 31,436.94, 47,140.82 and 18,293.08 is: 27,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.94 : 47,140.82 = 18,293.08 : x
  2. Step 2: Convert to fraction form
    31,436.94/47,140.82 = 18,293.08/x
  3. Step 3: Cross multiply
    31,436.94x = 47,140.82 × 18,293.08
  4. Step 4: Simplify right side
    31,436.94x = 862,350,791.53
  5. Step 5: Solve for x
    x = 862,350,791.53/31,436.94
  6. Step 6: Final answer
    x = 27,431.13

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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.