Home / 20,705.91-31,032.95-16,305.99

Finding the Fourth Proportional to 20,705.91, 31,032.95 and 16,305.99

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Solution

The fourth proportional to 20,705.91, 31,032.95 and 16,305.99 is: 24,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.91 : 31,032.95 = 16,305.99 : x
  2. Step 2: Convert to fraction form
    20,705.91/31,032.95 = 16,305.99/x
  3. Step 3: Cross multiply
    20,705.91x = 31,032.95 × 16,305.99
  4. Step 4: Simplify right side
    20,705.91x = 506,022,890.84
  5. Step 5: Solve for x
    x = 506,022,890.84/20,705.91
  6. Step 6: Final answer
    x = 24,438.57

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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.