Home / 39,039.08-53,873.95-21,134.09

Finding the Fourth Proportional to 39,039.08, 53,873.95 and 21,134.09

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Solution

The fourth proportional to 39,039.08, 53,873.95 and 21,134.09 is: 29,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039.08 : 53,873.95 = 21,134.09 : x
  2. Step 2: Convert to fraction form
    39,039.08/53,873.95 = 21,134.09/x
  3. Step 3: Cross multiply
    39,039.08x = 53,873.95 × 21,134.09
  4. Step 4: Simplify right side
    39,039.08x = 1,138,576,638.59
  5. Step 5: Solve for x
    x = 1,138,576,638.59/39,039.08
  6. Step 6: Final answer
    x = 29,165.05

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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.