Home / 31,436.01-47,147.36-9,243.36

Finding the Fourth Proportional to 31,436.01, 47,147.36 and 9,243.36

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Solution

The fourth proportional to 31,436.01, 47,147.36 and 9,243.36 is: 13,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.01 : 47,147.36 = 9,243.36 : x
  2. Step 2: Convert to fraction form
    31,436.01/47,147.36 = 9,243.36/x
  3. Step 3: Cross multiply
    31,436.01x = 47,147.36 × 9,243.36
  4. Step 4: Simplify right side
    31,436.01x = 435,799,975.31
  5. Step 5: Solve for x
    x = 435,799,975.31/31,436.01
  6. Step 6: Final answer
    x = 13,863.08

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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.