Home / 20,946.59-31,411.62-8,464.26

Finding the Fourth Proportional to 20,946.59, 31,411.62 and 8,464.26

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Solution

The fourth proportional to 20,946.59, 31,411.62 and 8,464.26 is: 12,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.59 : 31,411.62 = 8,464.26 : x
  2. Step 2: Convert to fraction form
    20,946.59/31,411.62 = 8,464.26/x
  3. Step 3: Cross multiply
    20,946.59x = 31,411.62 × 8,464.26
  4. Step 4: Simplify right side
    20,946.59x = 265,876,118.70
  5. Step 5: Solve for x
    x = 265,876,118.70/20,946.59
  6. Step 6: Final answer
    x = 12,693.05

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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.