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Finding the Fourth Proportional to 39,490.28, 54,499.84 and 22,499.84

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Solution

The fourth proportional to 39,490.28, 54,499.84 and 22,499.84 is: 31,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.28 : 54,499.84 = 22,499.84 : x
  2. Step 2: Convert to fraction form
    39,490.28/54,499.84 = 22,499.84/x
  3. Step 3: Cross multiply
    39,490.28x = 54,499.84 × 22,499.84
  4. Step 4: Simplify right side
    39,490.28x = 1,226,237,680.03
  5. Step 5: Solve for x
    x = 1,226,237,680.03/39,490.28
  6. Step 6: Final answer
    x = 31,051.63

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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.