Home / 20,528.08-30,792.12-8,224.72

Finding the Fourth Proportional to 20,528.08, 30,792.12 and 8,224.72

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Solution

The fourth proportional to 20,528.08, 30,792.12 and 8,224.72 is: 12,337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.08 : 30,792.12 = 8,224.72 : x
  2. Step 2: Convert to fraction form
    20,528.08/30,792.12 = 8,224.72/x
  3. Step 3: Cross multiply
    20,528.08x = 30,792.12 × 8,224.72
  4. Step 4: Simplify right side
    20,528.08x = 253,256,565.21
  5. Step 5: Solve for x
    x = 253,256,565.21/20,528.08
  6. Step 6: Final answer
    x = 12,337.08

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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.