Home / 20,484.64-28,270.92-12,532.15

Finding the Fourth Proportional to 20,484.64, 28,270.92 and 12,532.15

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Solution

The fourth proportional to 20,484.64, 28,270.92 and 12,532.15 is: 17,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.64 : 28,270.92 = 12,532.15 : x
  2. Step 2: Convert to fraction form
    20,484.64/28,270.92 = 12,532.15/x
  3. Step 3: Cross multiply
    20,484.64x = 28,270.92 × 12,532.15
  4. Step 4: Simplify right side
    20,484.64x = 354,295,410.08
  5. Step 5: Solve for x
    x = 354,295,410.08/20,484.64
  6. Step 6: Final answer
    x = 17,295.66

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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.