Home / 21,249.58-31,838.90-14,999.35

Finding the Fourth Proportional to 21,249.58, 31,838.90 and 14,999.35

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Solution

The fourth proportional to 21,249.58, 31,838.90 and 14,999.35 is: 22,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.58 : 31,838.90 = 14,999.35 : x
  2. Step 2: Convert to fraction form
    21,249.58/31,838.90 = 14,999.35/x
  3. Step 3: Cross multiply
    21,249.58x = 31,838.90 × 14,999.35
  4. Step 4: Simplify right side
    21,249.58x = 477,562,729.72
  5. Step 5: Solve for x
    x = 477,562,729.72/21,249.58
  6. Step 6: Final answer
    x = 22,473.98

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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.