Home / 20,846.92-28,760.52-12,875.16

Finding the Fourth Proportional to 20,846.92, 28,760.52 and 12,875.16

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Solution

The fourth proportional to 20,846.92, 28,760.52 and 12,875.16 is: 17,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.92 : 28,760.52 = 12,875.16 : x
  2. Step 2: Convert to fraction form
    20,846.92/28,760.52 = 12,875.16/x
  3. Step 3: Cross multiply
    20,846.92x = 28,760.52 × 12,875.16
  4. Step 4: Simplify right side
    20,846.92x = 370,296,296.68
  5. Step 5: Solve for x
    x = 370,296,296.68/20,846.92
  6. Step 6: Final answer
    x = 17,762.64

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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.