Home / 20,325.76-28,054.72-12,373.52

Finding the Fourth Proportional to 20,325.76, 28,054.72 and 12,373.52

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Solution

The fourth proportional to 20,325.76, 28,054.72 and 12,373.52 is: 17,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.76 : 28,054.72 = 12,373.52 : x
  2. Step 2: Convert to fraction form
    20,325.76/28,054.72 = 12,373.52/x
  3. Step 3: Cross multiply
    20,325.76x = 28,054.72 × 12,373.52
  4. Step 4: Simplify right side
    20,325.76x = 347,135,639.01
  5. Step 5: Solve for x
    x = 347,135,639.01/20,325.76
  6. Step 6: Final answer
    x = 17,078.61

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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.