Home / 22,153.01-30,570.93-12,721.64

Finding the Fourth Proportional to 22,153.01, 30,570.93 and 12,721.64

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Solution

The fourth proportional to 22,153.01, 30,570.93 and 12,721.64 is: 17,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.01 : 30,570.93 = 12,721.64 : x
  2. Step 2: Convert to fraction form
    22,153.01/30,570.93 = 12,721.64/x
  3. Step 3: Cross multiply
    22,153.01x = 30,570.93 × 12,721.64
  4. Step 4: Simplify right side
    22,153.01x = 388,912,213.07
  5. Step 5: Solve for x
    x = 388,912,213.07/22,153.01
  6. Step 6: Final answer
    x = 17,555.73

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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.