Home / 20,276.22-27,941.31-15,501.56

Finding the Fourth Proportional to 20,276.22, 27,941.31 and 15,501.56

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Solution

The fourth proportional to 20,276.22, 27,941.31 and 15,501.56 is: 21,361.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.22 : 27,941.31 = 15,501.56 : x
  2. Step 2: Convert to fraction form
    20,276.22/27,941.31 = 15,501.56/x
  3. Step 3: Cross multiply
    20,276.22x = 27,941.31 × 15,501.56
  4. Step 4: Simplify right side
    20,276.22x = 433,133,753.74
  5. Step 5: Solve for x
    x = 433,133,753.74/20,276.22
  6. Step 6: Final answer
    x = 21,361.66

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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.