Home / 20,892.94-31,317.26-9,790.26

Finding the Fourth Proportional to 20,892.94, 31,317.26 and 9,790.26

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Solution

The fourth proportional to 20,892.94, 31,317.26 and 9,790.26 is: 14,675.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.94 : 31,317.26 = 9,790.26 : x
  2. Step 2: Convert to fraction form
    20,892.94/31,317.26 = 9,790.26/x
  3. Step 3: Cross multiply
    20,892.94x = 31,317.26 × 9,790.26
  4. Step 4: Simplify right side
    20,892.94x = 306,604,117.89
  5. Step 5: Solve for x
    x = 306,604,117.89/20,892.94
  6. Step 6: Final answer
    x = 14,675.01

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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.