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Finding the Fourth Proportional to 25,959.57, 38,970.20 and 21,850.71

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Solution

The fourth proportional to 25,959.57, 38,970.20 and 21,850.71 is: 32,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,959.57 : 38,970.20 = 21,850.71 : x
  2. Step 2: Convert to fraction form
    25,959.57/38,970.20 = 21,850.71/x
  3. Step 3: Cross multiply
    25,959.57x = 38,970.20 × 21,850.71
  4. Step 4: Simplify right side
    25,959.57x = 851,526,538.84
  5. Step 5: Solve for x
    x = 851,526,538.84/25,959.57
  6. Step 6: Final answer
    x = 32,802.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.