Home / 25,641.99-35,353.05-21,025.76

Finding the Fourth Proportional to 25,641.99, 35,353.05 and 21,025.76

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Solution

The fourth proportional to 25,641.99, 35,353.05 and 21,025.76 is: 28,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.99 : 35,353.05 = 21,025.76 : x
  2. Step 2: Convert to fraction form
    25,641.99/35,353.05 = 21,025.76/x
  3. Step 3: Cross multiply
    25,641.99x = 35,353.05 × 21,025.76
  4. Step 4: Simplify right side
    25,641.99x = 743,324,825.58
  5. Step 5: Solve for x
    x = 743,324,825.58/25,641.99
  6. Step 6: Final answer
    x = 28,988.58

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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.