Home / 38,443.60-53,054.76-21,450.88

Finding the Fourth Proportional to 38,443.60, 53,054.76 and 21,450.88

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Solution

The fourth proportional to 38,443.60, 53,054.76 and 21,450.88 is: 29,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.60 : 53,054.76 = 21,450.88 : x
  2. Step 2: Convert to fraction form
    38,443.60/53,054.76 = 21,450.88/x
  3. Step 3: Cross multiply
    38,443.60x = 53,054.76 × 21,450.88
  4. Step 4: Simplify right side
    38,443.60x = 1,138,071,290.19
  5. Step 5: Solve for x
    x = 1,138,071,290.19/38,443.60
  6. Step 6: Final answer
    x = 29,603.66

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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.