Home / 31,568.36-47,342.76-10,787

Finding the Fourth Proportional to 31,568.36, 47,342.76 and 10,787

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Solution

The fourth proportional to 31,568.36, 47,342.76 and 10,787 is: 16,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.36 : 47,342.76 = 10,787 : x
  2. Step 2: Convert to fraction form
    31,568.36/47,342.76 = 10,787/x
  3. Step 3: Cross multiply
    31,568.36x = 47,342.76 × 10,787
  4. Step 4: Simplify right side
    31,568.36x = 510,686,352.12
  5. Step 5: Solve for x
    x = 510,686,352.12/31,568.36
  6. Step 6: Final answer
    x = 16,177.16

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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.