Home / 39,187.02-54,078.08-21,282.03

Finding the Fourth Proportional to 39,187.02, 54,078.08 and 21,282.03

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Solution

The fourth proportional to 39,187.02, 54,078.08 and 21,282.03 is: 29,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.02 : 54,078.08 = 21,282.03 : x
  2. Step 2: Convert to fraction form
    39,187.02/54,078.08 = 21,282.03/x
  3. Step 3: Cross multiply
    39,187.02x = 54,078.08 × 21,282.03
  4. Step 4: Simplify right side
    39,187.02x = 1,150,891,214.49
  5. Step 5: Solve for x
    x = 1,150,891,214.49/39,187.02
  6. Step 6: Final answer
    x = 29,369.19

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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.