Home / 21,033.32-31,549.29-8,549.66

Finding the Fourth Proportional to 21,033.32, 31,549.29 and 8,549.66

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Solution

The fourth proportional to 21,033.32, 31,549.29 and 8,549.66 is: 12,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.32 : 31,549.29 = 8,549.66 : x
  2. Step 2: Convert to fraction form
    21,033.32/31,549.29 = 8,549.66/x
  3. Step 3: Cross multiply
    21,033.32x = 31,549.29 × 8,549.66
  4. Step 4: Simplify right side
    21,033.32x = 269,735,702.74
  5. Step 5: Solve for x
    x = 269,735,702.74/21,033.32
  6. Step 6: Final answer
    x = 12,824.21

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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.