Home / 23,140.48-31,933.88-12,530.12

Finding the Fourth Proportional to 23,140.48, 31,933.88 and 12,530.12

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Solution

The fourth proportional to 23,140.48, 31,933.88 and 12,530.12 is: 17,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.48 : 31,933.88 = 12,530.12 : x
  2. Step 2: Convert to fraction form
    23,140.48/31,933.88 = 12,530.12/x
  3. Step 3: Cross multiply
    23,140.48x = 31,933.88 × 12,530.12
  4. Step 4: Simplify right side
    23,140.48x = 400,135,348.47
  5. Step 5: Solve for x
    x = 400,135,348.47/23,140.48
  6. Step 6: Final answer
    x = 17,291.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.