Home / 23,140.68-31,934.37-12,530.54

Finding the Fourth Proportional to 23,140.68, 31,934.37 and 12,530.54

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Solution

The fourth proportional to 23,140.68, 31,934.37 and 12,530.54 is: 17,292.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.68 : 31,934.37 = 12,530.54 : x
  2. Step 2: Convert to fraction form
    23,140.68/31,934.37 = 12,530.54/x
  3. Step 3: Cross multiply
    23,140.68x = 31,934.37 × 12,530.54
  4. Step 4: Simplify right side
    23,140.68x = 400,154,838.01
  5. Step 5: Solve for x
    x = 400,154,838.01/23,140.68
  6. Step 6: Final answer
    x = 17,292.27

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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.