Home / 38,749.93-53,480.12-21,755.09

Finding the Fourth Proportional to 38,749.93, 53,480.12 and 21,755.09

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Solution

The fourth proportional to 38,749.93, 53,480.12 and 21,755.09 is: 30,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,749.93 : 53,480.12 = 21,755.09 : x
  2. Step 2: Convert to fraction form
    38,749.93/53,480.12 = 21,755.09/x
  3. Step 3: Cross multiply
    38,749.93x = 53,480.12 × 21,755.09
  4. Step 4: Simplify right side
    38,749.93x = 1,163,464,848.74
  5. Step 5: Solve for x
    x = 1,163,464,848.74/38,749.93
  6. Step 6: Final answer
    x = 30,024.96

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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.