Home / 28,089.60-42,121.71-14,939.16

Finding the Fourth Proportional to 28,089.60, 42,121.71 and 14,939.16

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Solution

The fourth proportional to 28,089.60, 42,121.71 and 14,939.16 is: 22,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.60 : 42,121.71 = 14,939.16 : x
  2. Step 2: Convert to fraction form
    28,089.60/42,121.71 = 14,939.16/x
  3. Step 3: Cross multiply
    28,089.60x = 42,121.71 × 14,939.16
  4. Step 4: Simplify right side
    28,089.60x = 629,262,965.16
  5. Step 5: Solve for x
    x = 629,262,965.16/28,089.60
  6. Step 6: Final answer
    x = 22,401.99

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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.