Home / 39,137.52-54,009.39-22,145.07

Finding the Fourth Proportional to 39,137.52, 54,009.39 and 22,145.07

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Solution

The fourth proportional to 39,137.52, 54,009.39 and 22,145.07 is: 30,559.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.52 : 54,009.39 = 22,145.07 : x
  2. Step 2: Convert to fraction form
    39,137.52/54,009.39 = 22,145.07/x
  3. Step 3: Cross multiply
    39,137.52x = 54,009.39 × 22,145.07
  4. Step 4: Simplify right side
    39,137.52x = 1,196,041,722.21
  5. Step 5: Solve for x
    x = 1,196,041,722.21/39,137.52
  6. Step 6: Final answer
    x = 30,559.98

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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.