Home / 39,152.09-54,030.03-21,247.10

Finding the Fourth Proportional to 39,152.09, 54,030.03 and 21,247.10

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Solution

The fourth proportional to 39,152.09, 54,030.03 and 21,247.10 is: 29,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,152.09 : 54,030.03 = 21,247.10 : x
  2. Step 2: Convert to fraction form
    39,152.09/54,030.03 = 21,247.10/x
  3. Step 3: Cross multiply
    39,152.09x = 54,030.03 × 21,247.10
  4. Step 4: Simplify right side
    39,152.09x = 1,147,981,180.26
  5. Step 5: Solve for x
    x = 1,147,981,180.26/39,152.09
  6. Step 6: Final answer
    x = 29,321.07

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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.