Home / 39,489.78-54,499.44-22,490.28

Finding the Fourth Proportional to 39,489.78, 54,499.44 and 22,490.28

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Solution

The fourth proportional to 39,489.78, 54,499.44 and 22,490.28 is: 31,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.78 : 54,499.44 = 22,490.28 : x
  2. Step 2: Convert to fraction form
    39,489.78/54,499.44 = 22,490.28/x
  3. Step 3: Cross multiply
    39,489.78x = 54,499.44 × 22,490.28
  4. Step 4: Simplify right side
    39,489.78x = 1,225,707,665.44
  5. Step 5: Solve for x
    x = 1,225,707,665.44/39,489.78
  6. Step 6: Final answer
    x = 31,038.60

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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.