Home / 38,443.86-53,054.88-21,448.13

Finding the Fourth Proportional to 38,443.86, 53,054.88 and 21,448.13

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Solution

The fourth proportional to 38,443.86, 53,054.88 and 21,448.13 is: 29,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.86 : 53,054.88 = 21,448.13 : x
  2. Step 2: Convert to fraction form
    38,443.86/53,054.88 = 21,448.13/x
  3. Step 3: Cross multiply
    38,443.86x = 53,054.88 × 21,448.13
  4. Step 4: Simplify right side
    38,443.86x = 1,137,927,963.37
  5. Step 5: Solve for x
    x = 1,137,927,963.37/38,443.86
  6. Step 6: Final answer
    x = 29,599.73

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Half scale
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Double 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.