Home / 21,236.46-31,854.77-6,445.50

Finding the Fourth Proportional to 21,236.46, 31,854.77 and 6,445.50

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Solution

The fourth proportional to 21,236.46, 31,854.77 and 6,445.50 is: 9,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.46 : 31,854.77 = 6,445.50 : x
  2. Step 2: Convert to fraction form
    21,236.46/31,854.77 = 6,445.50/x
  3. Step 3: Cross multiply
    21,236.46x = 31,854.77 × 6,445.50
  4. Step 4: Simplify right side
    21,236.46x = 205,319,920.04
  5. Step 5: Solve for x
    x = 205,319,920.04/21,236.46
  6. Step 6: Final answer
    x = 9,668.27

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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.