Home / 38,439.49-53,048.94-21,446.30

Finding the Fourth Proportional to 38,439.49, 53,048.94 and 21,446.30

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Solution

The fourth proportional to 38,439.49, 53,048.94 and 21,446.30 is: 29,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,439.49 : 53,048.94 = 21,446.30 : x
  2. Step 2: Convert to fraction form
    38,439.49/53,048.94 = 21,446.30/x
  3. Step 3: Cross multiply
    38,439.49x = 53,048.94 × 21,446.30
  4. Step 4: Simplify right side
    38,439.49x = 1,137,703,216.68
  5. Step 5: Solve for x
    x = 1,137,703,216.68/38,439.49
  6. Step 6: Final answer
    x = 29,597.25

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Half scale
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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.