Home / 22,191.33-30,581.64-15,892.77

Finding the Fourth Proportional to 22,191.33, 30,581.64 and 15,892.77

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Solution

The fourth proportional to 22,191.33, 30,581.64 and 15,892.77 is: 21,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,191.33 : 30,581.64 = 15,892.77 : x
  2. Step 2: Convert to fraction form
    22,191.33/30,581.64 = 15,892.77/x
  3. Step 3: Cross multiply
    22,191.33x = 30,581.64 × 15,892.77
  4. Step 4: Simplify right side
    22,191.33x = 486,026,970.74
  5. Step 5: Solve for x
    x = 486,026,970.74/22,191.33
  6. Step 6: Final answer
    x = 21,901.66

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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.