Home / 30,026.72-44,990.88-21,218.60

Finding the Fourth Proportional to 30,026.72, 44,990.88 and 21,218.60

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Solution

The fourth proportional to 30,026.72, 44,990.88 and 21,218.60 is: 31,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,026.72 : 44,990.88 = 21,218.60 : x
  2. Step 2: Convert to fraction form
    30,026.72/44,990.88 = 21,218.60/x
  3. Step 3: Cross multiply
    30,026.72x = 44,990.88 × 21,218.60
  4. Step 4: Simplify right side
    30,026.72x = 954,643,486.37
  5. Step 5: Solve for x
    x = 954,643,486.37/30,026.72
  6. Step 6: Final answer
    x = 31,793.13

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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.