Home / 19,785.16-29,657.23-12,372.60

Finding the Fourth Proportional to 19,785.16, 29,657.23 and 12,372.60

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Solution

The fourth proportional to 19,785.16, 29,657.23 and 12,372.60 is: 18,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.16 : 29,657.23 = 12,372.60 : x
  2. Step 2: Convert to fraction form
    19,785.16/29,657.23 = 12,372.60/x
  3. Step 3: Cross multiply
    19,785.16x = 29,657.23 × 12,372.60
  4. Step 4: Simplify right side
    19,785.16x = 366,937,043.90
  5. Step 5: Solve for x
    x = 366,937,043.90/19,785.16
  6. Step 6: Final answer
    x = 18,546.07

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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.