Home / 22,153.07-30,534.77-15,684.41

Finding the Fourth Proportional to 22,153.07, 30,534.77 and 15,684.41

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Solution

The fourth proportional to 22,153.07, 30,534.77 and 15,684.41 is: 21,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.07 : 30,534.77 = 15,684.41 : x
  2. Step 2: Convert to fraction form
    22,153.07/30,534.77 = 15,684.41/x
  3. Step 3: Cross multiply
    22,153.07x = 30,534.77 × 15,684.41
  4. Step 4: Simplify right side
    22,153.07x = 478,919,620.84
  5. Step 5: Solve for x
    x = 478,919,620.84/22,153.07
  6. Step 6: Final answer
    x = 21,618.66

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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.