Home / 38,118.83-52,603.20-21,122.93

Finding the Fourth Proportional to 38,118.83, 52,603.20 and 21,122.93

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Solution

The fourth proportional to 38,118.83, 52,603.20 and 21,122.93 is: 29,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118.83 : 52,603.20 = 21,122.93 : x
  2. Step 2: Convert to fraction form
    38,118.83/52,603.20 = 21,122.93/x
  3. Step 3: Cross multiply
    38,118.83x = 52,603.20 × 21,122.93
  4. Step 4: Simplify right side
    38,118.83x = 1,111,133,842.88
  5. Step 5: Solve for x
    x = 1,111,133,842.88/38,118.83
  6. Step 6: Final answer
    x = 29,149.22

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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.