Home / 38,620.95-53,296.49-21,625.35

Finding the Fourth Proportional to 38,620.95, 53,296.49 and 21,625.35

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Solution

The fourth proportional to 38,620.95, 53,296.49 and 21,625.35 is: 29,842.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.95 : 53,296.49 = 21,625.35 : x
  2. Step 2: Convert to fraction form
    38,620.95/53,296.49 = 21,625.35/x
  3. Step 3: Cross multiply
    38,620.95x = 53,296.49 × 21,625.35
  4. Step 4: Simplify right side
    38,620.95x = 1,152,555,037.60
  5. Step 5: Solve for x
    x = 1,152,555,037.60/38,620.95
  6. Step 6: Final answer
    x = 29,842.75

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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.