Home / 21,608.67-29,800.15-14,812.57

Finding the Fourth Proportional to 21,608.67, 29,800.15 and 14,812.57

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Solution

The fourth proportional to 21,608.67, 29,800.15 and 14,812.57 is: 20,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.67 : 29,800.15 = 14,812.57 : x
  2. Step 2: Convert to fraction form
    21,608.67/29,800.15 = 14,812.57/x
  3. Step 3: Cross multiply
    21,608.67x = 29,800.15 × 14,812.57
  4. Step 4: Simplify right side
    21,608.67x = 441,416,863.65
  5. Step 5: Solve for x
    x = 441,416,863.65/21,608.67
  6. Step 6: Final answer
    x = 20,427.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.