Home / 20,766.06-31,160.33-9,670.07

Finding the Fourth Proportional to 20,766.06, 31,160.33 and 9,670.07

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Solution

The fourth proportional to 20,766.06, 31,160.33 and 9,670.07 is: 14,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.06 : 31,160.33 = 9,670.07 : x
  2. Step 2: Convert to fraction form
    20,766.06/31,160.33 = 9,670.07/x
  3. Step 3: Cross multiply
    20,766.06x = 31,160.33 × 9,670.07
  4. Step 4: Simplify right side
    20,766.06x = 301,322,368.17
  5. Step 5: Solve for x
    x = 301,322,368.17/20,766.06
  6. Step 6: Final answer
    x = 14,510.33

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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.