Home / 25,840.80-35,664.19-15,775.09

Finding the Fourth Proportional to 25,840.80, 35,664.19 and 15,775.09

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Solution

The fourth proportional to 25,840.80, 35,664.19 and 15,775.09 is: 21,771.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,840.80 : 35,664.19 = 15,775.09 : x
  2. Step 2: Convert to fraction form
    25,840.80/35,664.19 = 15,775.09/x
  3. Step 3: Cross multiply
    25,840.80x = 35,664.19 × 15,775.09
  4. Step 4: Simplify right side
    25,840.80x = 562,605,678.43
  5. Step 5: Solve for x
    x = 562,605,678.43/25,840.80
  6. Step 6: Final answer
    x = 21,771.99

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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.