Home / 31,869.38-47,804.88-17,918.48

Finding the Fourth Proportional to 31,869.38, 47,804.88 and 17,918.48

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Solution

The fourth proportional to 31,869.38, 47,804.88 and 17,918.48 is: 26,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.38 : 47,804.88 = 17,918.48 : x
  2. Step 2: Convert to fraction form
    31,869.38/47,804.88 = 17,918.48/x
  3. Step 3: Cross multiply
    31,869.38x = 47,804.88 × 17,918.48
  4. Step 4: Simplify right side
    31,869.38x = 856,590,786.18
  5. Step 5: Solve for x
    x = 856,590,786.18/31,869.38
  6. Step 6: Final answer
    x = 26,878.18

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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.