Home / 22,011.88-30,376.10-12,580.20

Finding the Fourth Proportional to 22,011.88, 30,376.10 and 12,580.20

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Solution

The fourth proportional to 22,011.88, 30,376.10 and 12,580.20 is: 17,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.88 : 30,376.10 = 12,580.20 : x
  2. Step 2: Convert to fraction form
    22,011.88/30,376.10 = 12,580.20/x
  3. Step 3: Cross multiply
    22,011.88x = 30,376.10 × 12,580.20
  4. Step 4: Simplify right side
    22,011.88x = 382,137,413.22
  5. Step 5: Solve for x
    x = 382,137,413.22/22,011.88
  6. Step 6: Final answer
    x = 17,360.51

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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.