Home / 19,999.32-29,998.98-5,208.19

Finding the Fourth Proportional to 19,999.32, 29,998.98 and 5,208.19

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Solution

The fourth proportional to 19,999.32, 29,998.98 and 5,208.19 is: 7,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.32 : 29,998.98 = 5,208.19 : x
  2. Step 2: Convert to fraction form
    19,999.32/29,998.98 = 5,208.19/x
  3. Step 3: Cross multiply
    19,999.32x = 29,998.98 × 5,208.19
  4. Step 4: Simplify right side
    19,999.32x = 156,240,361.61
  5. Step 5: Solve for x
    x = 156,240,361.61/19,999.32
  6. Step 6: Final answer
    x = 7,812.29

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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.