Home / 38,620.40-53,296.28-21,625.38

Finding the Fourth Proportional to 38,620.40, 53,296.28 and 21,625.38

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Solution

The fourth proportional to 38,620.40, 53,296.28 and 21,625.38 is: 29,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.40 : 53,296.28 = 21,625.38 : x
  2. Step 2: Convert to fraction form
    38,620.40/53,296.28 = 21,625.38/x
  3. Step 3: Cross multiply
    38,620.40x = 53,296.28 × 21,625.38
  4. Step 4: Simplify right side
    38,620.40x = 1,152,552,280.55
  5. Step 5: Solve for x
    x = 1,152,552,280.55/38,620.40
  6. Step 6: Final answer
    x = 29,843.10

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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.