Home / 25,812.48-35,618.64-15,204.72

Finding the Fourth Proportional to 25,812.48, 35,618.64 and 15,204.72

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Solution

The fourth proportional to 25,812.48, 35,618.64 and 15,204.72 is: 20,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,812.48 : 35,618.64 = 15,204.72 : x
  2. Step 2: Convert to fraction form
    25,812.48/35,618.64 = 15,204.72/x
  3. Step 3: Cross multiply
    25,812.48x = 35,618.64 × 15,204.72
  4. Step 4: Simplify right side
    25,812.48x = 541,571,447.98
  5. Step 5: Solve for x
    x = 541,571,447.98/25,812.48
  6. Step 6: Final answer
    x = 20,980.99

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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.