Home / 22,039.72-30,408.90-13,089.16

Finding the Fourth Proportional to 22,039.72, 30,408.90 and 13,089.16

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Solution

The fourth proportional to 22,039.72, 30,408.90 and 13,089.16 is: 18,059.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,039.72 : 30,408.90 = 13,089.16 : x
  2. Step 2: Convert to fraction form
    22,039.72/30,408.90 = 13,089.16/x
  3. Step 3: Cross multiply
    22,039.72x = 30,408.90 × 13,089.16
  4. Step 4: Simplify right side
    22,039.72x = 398,026,957.52
  5. Step 5: Solve for x
    x = 398,026,957.52/22,039.72
  6. Step 6: Final answer
    x = 18,059.53

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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.