Home / 38,853.72-53,615.79-21,625.59

Finding the Fourth Proportional to 38,853.72, 53,615.79 and 21,625.59

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Solution

The fourth proportional to 38,853.72, 53,615.79 and 21,625.59 is: 29,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,853.72 : 53,615.79 = 21,625.59 : x
  2. Step 2: Convert to fraction form
    38,853.72/53,615.79 = 21,625.59/x
  3. Step 3: Cross multiply
    38,853.72x = 53,615.79 × 21,625.59
  4. Step 4: Simplify right side
    38,853.72x = 1,159,473,092.07
  5. Step 5: Solve for x
    x = 1,159,473,092.07/38,853.72
  6. Step 6: Final answer
    x = 29,842.01

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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.