Home / 30,525.45-42,125.25-17,787.37

Finding the Fourth Proportional to 30,525.45, 42,125.25 and 17,787.37

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Solution

The fourth proportional to 30,525.45, 42,125.25 and 17,787.37 is: 24,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.45 : 42,125.25 = 17,787.37 : x
  2. Step 2: Convert to fraction form
    30,525.45/42,125.25 = 17,787.37/x
  3. Step 3: Cross multiply
    30,525.45x = 42,125.25 × 17,787.37
  4. Step 4: Simplify right side
    30,525.45x = 749,297,541.93
  5. Step 5: Solve for x
    x = 749,297,541.93/30,525.45
  6. Step 6: Final answer
    x = 24,546.65

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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.