Home / 20,339.65-30,392.86-15,504.34

Finding the Fourth Proportional to 20,339.65, 30,392.86 and 15,504.34

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Solution

The fourth proportional to 20,339.65, 30,392.86 and 15,504.34 is: 23,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.65 : 30,392.86 = 15,504.34 : x
  2. Step 2: Convert to fraction form
    20,339.65/30,392.86 = 15,504.34/x
  3. Step 3: Cross multiply
    20,339.65x = 30,392.86 × 15,504.34
  4. Step 4: Simplify right side
    20,339.65x = 471,221,120.27
  5. Step 5: Solve for x
    x = 471,221,120.27/20,339.65
  6. Step 6: Final answer
    x = 23,167.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.