Home / 38,879.24-53,655.09-21,889.32

Finding the Fourth Proportional to 38,879.24, 53,655.09 and 21,889.32

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Solution

The fourth proportional to 38,879.24, 53,655.09 and 21,889.32 is: 30,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,879.24 : 53,655.09 = 21,889.32 : x
  2. Step 2: Convert to fraction form
    38,879.24/53,655.09 = 21,889.32/x
  3. Step 3: Cross multiply
    38,879.24x = 53,655.09 × 21,889.32
  4. Step 4: Simplify right side
    38,879.24x = 1,174,473,434.64
  5. Step 5: Solve for x
    x = 1,174,473,434.64/38,879.24
  6. Step 6: Final answer
    x = 30,208.24

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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.