Home / 31,458.06-47,165.22-13,918.32

Finding the Fourth Proportional to 31,458.06, 47,165.22 and 13,918.32

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Solution

The fourth proportional to 31,458.06, 47,165.22 and 13,918.32 is: 20,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.06 : 47,165.22 = 13,918.32 : x
  2. Step 2: Convert to fraction form
    31,458.06/47,165.22 = 13,918.32/x
  3. Step 3: Cross multiply
    31,458.06x = 47,165.22 × 13,918.32
  4. Step 4: Simplify right side
    31,458.06x = 656,460,624.83
  5. Step 5: Solve for x
    x = 656,460,624.83/31,458.06
  6. Step 6: Final answer
    x = 20,867.80

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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.