Home / 21,644.76-32,465.70-8,499.36

Finding the Fourth Proportional to 21,644.76, 32,465.70 and 8,499.36

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Solution

The fourth proportional to 21,644.76, 32,465.70 and 8,499.36 is: 12,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.76 : 32,465.70 = 8,499.36 : x
  2. Step 2: Convert to fraction form
    21,644.76/32,465.70 = 8,499.36/x
  3. Step 3: Cross multiply
    21,644.76x = 32,465.70 × 8,499.36
  4. Step 4: Simplify right side
    21,644.76x = 275,937,671.95
  5. Step 5: Solve for x
    x = 275,937,671.95/21,644.76
  6. Step 6: Final answer
    x = 12,748.47

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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.