Home / 30,878.64-46,184.40-18,198.24

Finding the Fourth Proportional to 30,878.64, 46,184.40 and 18,198.24

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Solution

The fourth proportional to 30,878.64, 46,184.40 and 18,198.24 is: 27,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,878.64 : 46,184.40 = 18,198.24 : x
  2. Step 2: Convert to fraction form
    30,878.64/46,184.40 = 18,198.24/x
  3. Step 3: Cross multiply
    30,878.64x = 46,184.40 × 18,198.24
  4. Step 4: Simplify right side
    30,878.64x = 840,474,795.46
  5. Step 5: Solve for x
    x = 840,474,795.46/30,878.64
  6. Step 6: Final answer
    x = 27,218.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.