Home / 21,729.40-32,580.90-8,566.60

Finding the Fourth Proportional to 21,729.40, 32,580.90 and 8,566.60

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Solution

The fourth proportional to 21,729.40, 32,580.90 and 8,566.60 is: 12,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.40 : 32,580.90 = 8,566.60 : x
  2. Step 2: Convert to fraction form
    21,729.40/32,580.90 = 8,566.60/x
  3. Step 3: Cross multiply
    21,729.40x = 32,580.90 × 8,566.60
  4. Step 4: Simplify right side
    21,729.40x = 279,107,537.94
  5. Step 5: Solve for x
    x = 279,107,537.94/21,729.40
  6. Step 6: Final answer
    x = 12,844.70

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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.