Home / 38,849.16-53,611.32-21,852.12

Finding the Fourth Proportional to 38,849.16, 53,611.32 and 21,852.12

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Solution

The fourth proportional to 38,849.16, 53,611.32 and 21,852.12 is: 30,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,849.16 : 53,611.32 = 21,852.12 : x
  2. Step 2: Convert to fraction form
    38,849.16/53,611.32 = 21,852.12/x
  3. Step 3: Cross multiply
    38,849.16x = 53,611.32 × 21,852.12
  4. Step 4: Simplify right side
    38,849.16x = 1,171,520,998.00
  5. Step 5: Solve for x
    x = 1,171,520,998.00/38,849.16
  6. Step 6: Final answer
    x = 30,155.63

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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.