Home / 18,339.24-25,291.46-15,512.52

Finding the Fourth Proportional to 18,339.24, 25,291.46 and 15,512.52

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Solution

The fourth proportional to 18,339.24, 25,291.46 and 15,512.52 is: 21,393.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,339.24 : 25,291.46 = 15,512.52 : x
  2. Step 2: Convert to fraction form
    18,339.24/25,291.46 = 15,512.52/x
  3. Step 3: Cross multiply
    18,339.24x = 25,291.46 × 15,512.52
  4. Step 4: Simplify right side
    18,339.24x = 392,334,279.08
  5. Step 5: Solve for x
    x = 392,334,279.08/18,339.24
  6. Step 6: Final answer
    x = 21,393.16

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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.