Home / 20,612.78-30,916.43-5,823.04

Finding the Fourth Proportional to 20,612.78, 30,916.43 and 5,823.04

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Solution

The fourth proportional to 20,612.78, 30,916.43 and 5,823.04 is: 8,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.78 : 30,916.43 = 5,823.04 : x
  2. Step 2: Convert to fraction form
    20,612.78/30,916.43 = 5,823.04/x
  3. Step 3: Cross multiply
    20,612.78x = 30,916.43 × 5,823.04
  4. Step 4: Simplify right side
    20,612.78x = 180,027,614.70
  5. Step 5: Solve for x
    x = 180,027,614.70/20,612.78
  6. Step 6: Final answer
    x = 8,733.79

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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.