Home / 31,568.43-47,352.36-7,875.81

Finding the Fourth Proportional to 31,568.43, 47,352.36 and 7,875.81

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Solution

The fourth proportional to 31,568.43, 47,352.36 and 7,875.81 is: 11,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.43 : 47,352.36 = 7,875.81 : x
  2. Step 2: Convert to fraction form
    31,568.43/47,352.36 = 7,875.81/x
  3. Step 3: Cross multiply
    31,568.43x = 47,352.36 × 7,875.81
  4. Step 4: Simplify right side
    31,568.43x = 372,938,190.41
  5. Step 5: Solve for x
    x = 372,938,190.41/31,568.43
  6. Step 6: Final answer
    x = 11,813.64

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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.