Home / 39,150.33-54,039.11-31,189.65

Finding the Fourth Proportional to 39,150.33, 54,039.11 and 31,189.65

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Solution

The fourth proportional to 39,150.33, 54,039.11 and 31,189.65 is: 43,051.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.33 : 54,039.11 = 31,189.65 : x
  2. Step 2: Convert to fraction form
    39,150.33/54,039.11 = 31,189.65/x
  3. Step 3: Cross multiply
    39,150.33x = 54,039.11 × 31,189.65
  4. Step 4: Simplify right side
    39,150.33x = 1,685,460,927.21
  5. Step 5: Solve for x
    x = 1,685,460,927.21/39,150.33
  6. Step 6: Final answer
    x = 43,051.00

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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.