Home / 19,902.37-29,858.16-8,809.15

Finding the Fourth Proportional to 19,902.37, 29,858.16 and 8,809.15

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Solution

The fourth proportional to 19,902.37, 29,858.16 and 8,809.15 is: 13,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.37 : 29,858.16 = 8,809.15 : x
  2. Step 2: Convert to fraction form
    19,902.37/29,858.16 = 8,809.15/x
  3. Step 3: Cross multiply
    19,902.37x = 29,858.16 × 8,809.15
  4. Step 4: Simplify right side
    19,902.37x = 263,025,080.52
  5. Step 5: Solve for x
    x = 263,025,080.52/19,902.37
  6. Step 6: Final answer
    x = 13,215.77

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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.