Home / 23,140.31-31,933.85-12,530.17

Finding the Fourth Proportional to 23,140.31, 31,933.85 and 12,530.17

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Solution

The fourth proportional to 23,140.31, 31,933.85 and 12,530.17 is: 17,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.31 : 31,933.85 = 12,530.17 : x
  2. Step 2: Convert to fraction form
    23,140.31/31,933.85 = 12,530.17/x
  3. Step 3: Cross multiply
    23,140.31x = 31,933.85 × 12,530.17
  4. Step 4: Simplify right side
    23,140.31x = 400,136,378.26
  5. Step 5: Solve for x
    x = 400,136,378.26/23,140.31
  6. Step 6: Final answer
    x = 17,291.75

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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.