Home / 22,271.85-30,737.75-12,840.75

Finding the Fourth Proportional to 22,271.85, 30,737.75 and 12,840.75

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Solution

The fourth proportional to 22,271.85, 30,737.75 and 12,840.75 is: 17,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,271.85 : 30,737.75 = 12,840.75 : x
  2. Step 2: Convert to fraction form
    22,271.85/30,737.75 = 12,840.75/x
  3. Step 3: Cross multiply
    22,271.85x = 30,737.75 × 12,840.75
  4. Step 4: Simplify right side
    22,271.85x = 394,695,699.11
  5. Step 5: Solve for x
    x = 394,695,699.11/22,271.85
  6. Step 6: Final answer
    x = 17,721.73

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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.