Home / 38,745.13-53,473.86-21,521.42

Finding the Fourth Proportional to 38,745.13, 53,473.86 and 21,521.42

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Solution

The fourth proportional to 38,745.13, 53,473.86 and 21,521.42 is: 29,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,745.13 : 53,473.86 = 21,521.42 : x
  2. Step 2: Convert to fraction form
    38,745.13/53,473.86 = 21,521.42/x
  3. Step 3: Cross multiply
    38,745.13x = 53,473.86 × 21,521.42
  4. Step 4: Simplify right side
    38,745.13x = 1,150,833,400.08
  5. Step 5: Solve for x
    x = 1,150,833,400.08/38,745.13
  6. Step 6: Final answer
    x = 29,702.66

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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.