Home / 25,455.15-35,141.37-19,777.11

Finding the Fourth Proportional to 25,455.15, 35,141.37 and 19,777.11

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Solution

The fourth proportional to 25,455.15, 35,141.37 and 19,777.11 is: 27,302.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.15 : 35,141.37 = 19,777.11 : x
  2. Step 2: Convert to fraction form
    25,455.15/35,141.37 = 19,777.11/x
  3. Step 3: Cross multiply
    25,455.15x = 35,141.37 × 19,777.11
  4. Step 4: Simplify right side
    25,455.15x = 694,994,740.04
  5. Step 5: Solve for x
    x = 694,994,740.04/25,455.15
  6. Step 6: Final answer
    x = 27,302.72

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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.