Home / 39,044.80-53,890.68-30,530.08

Finding the Fourth Proportional to 39,044.80, 53,890.68 and 30,530.08

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Solution

The fourth proportional to 39,044.80, 53,890.68 and 30,530.08 is: 42,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,044.80 : 53,890.68 = 30,530.08 : x
  2. Step 2: Convert to fraction form
    39,044.80/53,890.68 = 30,530.08/x
  3. Step 3: Cross multiply
    39,044.80x = 53,890.68 × 30,530.08
  4. Step 4: Simplify right side
    39,044.80x = 1,645,286,771.65
  5. Step 5: Solve for x
    x = 1,645,286,771.65/39,044.80
  6. Step 6: Final answer
    x = 42,138.44

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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.