Home / 38,341.09-52,911.89-20,879.58

Finding the Fourth Proportional to 38,341.09, 52,911.89 and 20,879.58

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Solution

The fourth proportional to 38,341.09, 52,911.89 and 20,879.58 is: 28,814.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,341.09 : 52,911.89 = 20,879.58 : x
  2. Step 2: Convert to fraction form
    38,341.09/52,911.89 = 20,879.58/x
  3. Step 3: Cross multiply
    38,341.09x = 52,911.89 × 20,879.58
  4. Step 4: Simplify right side
    38,341.09x = 1,104,778,040.21
  5. Step 5: Solve for x
    x = 1,104,778,040.21/38,341.09
  6. Step 6: Final answer
    x = 28,814.47

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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.