Home / 38,955.08-53,758.03-21,050.09

Finding the Fourth Proportional to 38,955.08, 53,758.03 and 21,050.09

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Solution

The fourth proportional to 38,955.08, 53,758.03 and 21,050.09 is: 29,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,955.08 : 53,758.03 = 21,050.09 : x
  2. Step 2: Convert to fraction form
    38,955.08/53,758.03 = 21,050.09/x
  3. Step 3: Cross multiply
    38,955.08x = 53,758.03 × 21,050.09
  4. Step 4: Simplify right side
    38,955.08x = 1,131,610,995.68
  5. Step 5: Solve for x
    x = 1,131,610,995.68/38,955.08
  6. Step 6: Final answer
    x = 29,049.13

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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.