Home / 21,416.41-32,107.30-8,945.99

Finding the Fourth Proportional to 21,416.41, 32,107.30 and 8,945.99

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Solution

The fourth proportional to 21,416.41, 32,107.30 and 8,945.99 is: 13,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.41 : 32,107.30 = 8,945.99 : x
  2. Step 2: Convert to fraction form
    21,416.41/32,107.30 = 8,945.99/x
  3. Step 3: Cross multiply
    21,416.41x = 32,107.30 × 8,945.99
  4. Step 4: Simplify right side
    21,416.41x = 287,231,379.46
  5. Step 5: Solve for x
    x = 287,231,379.46/21,416.41
  6. Step 6: Final answer
    x = 13,411.74

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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.