Home / 20,275.76-30,392.86-9,730.36

Finding the Fourth Proportional to 20,275.76, 30,392.86 and 9,730.36

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Solution

The fourth proportional to 20,275.76, 30,392.86 and 9,730.36 is: 14,585.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.76 : 30,392.86 = 9,730.36 : x
  2. Step 2: Convert to fraction form
    20,275.76/30,392.86 = 9,730.36/x
  3. Step 3: Cross multiply
    20,275.76x = 30,392.86 × 9,730.36
  4. Step 4: Simplify right side
    20,275.76x = 295,733,469.23
  5. Step 5: Solve for x
    x = 295,733,469.23/20,275.76
  6. Step 6: Final answer
    x = 14,585.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.