Home / 39,039.58-53,874.64-21,134.59

Finding the Fourth Proportional to 39,039.58, 53,874.64 and 21,134.59

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Solution

The fourth proportional to 39,039.58, 53,874.64 and 21,134.59 is: 29,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039.58 : 53,874.64 = 21,134.59 : x
  2. Step 2: Convert to fraction form
    39,039.58/53,874.64 = 21,134.59/x
  3. Step 3: Cross multiply
    39,039.58x = 53,874.64 × 21,134.59
  4. Step 4: Simplify right side
    39,039.58x = 1,138,618,158.42
  5. Step 5: Solve for x
    x = 1,138,618,158.42/39,039.58
  6. Step 6: Final answer
    x = 29,165.74

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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.