Home / 39,187.36-54,077.02-21,281.96

Finding the Fourth Proportional to 39,187.36, 54,077.02 and 21,281.96

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Solution

The fourth proportional to 39,187.36, 54,077.02 and 21,281.96 is: 29,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187.36 : 54,077.02 = 21,281.96 : x
  2. Step 2: Convert to fraction form
    39,187.36/54,077.02 = 21,281.96/x
  3. Step 3: Cross multiply
    39,187.36x = 54,077.02 × 21,281.96
  4. Step 4: Simplify right side
    39,187.36x = 1,150,864,976.56
  5. Step 5: Solve for x
    x = 1,150,864,976.56/39,187.36
  6. Step 6: Final answer
    x = 29,368.27

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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.