Home / 21,068.75-31,608.32-6,277.61

Finding the Fourth Proportional to 21,068.75, 31,608.32 and 6,277.61

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Solution

The fourth proportional to 21,068.75, 31,608.32 and 6,277.61 is: 9,417.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.75 : 31,608.32 = 6,277.61 : x
  2. Step 2: Convert to fraction form
    21,068.75/31,608.32 = 6,277.61/x
  3. Step 3: Cross multiply
    21,068.75x = 31,608.32 × 6,277.61
  4. Step 4: Simplify right side
    21,068.75x = 198,424,705.72
  5. Step 5: Solve for x
    x = 198,424,705.72/21,068.75
  6. Step 6: Final answer
    x = 9,417.96

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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.