Home / 38,159.87-52,663.77-21,169.59

Finding the Fourth Proportional to 38,159.87, 52,663.77 and 21,169.59

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Solution

The fourth proportional to 38,159.87, 52,663.77 and 21,169.59 is: 29,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,159.87 : 52,663.77 = 21,169.59 : x
  2. Step 2: Convert to fraction form
    38,159.87/52,663.77 = 21,169.59/x
  3. Step 3: Cross multiply
    38,159.87x = 52,663.77 × 21,169.59
  4. Step 4: Simplify right side
    38,159.87x = 1,114,870,418.75
  5. Step 5: Solve for x
    x = 1,114,870,418.75/38,159.87
  6. Step 6: Final answer
    x = 29,215.78

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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.