Home / 22,121.51-30,526.50-12,561.14

Finding the Fourth Proportional to 22,121.51, 30,526.50 and 12,561.14

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Solution

The fourth proportional to 22,121.51, 30,526.50 and 12,561.14 is: 17,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.51 : 30,526.50 = 12,561.14 : x
  2. Step 2: Convert to fraction form
    22,121.51/30,526.50 = 12,561.14/x
  3. Step 3: Cross multiply
    22,121.51x = 30,526.50 × 12,561.14
  4. Step 4: Simplify right side
    22,121.51x = 383,447,763.63
  5. Step 5: Solve for x
    x = 383,447,763.63/22,121.51
  6. Step 6: Final answer
    x = 17,333.71

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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.