Home / 30,228.42-41,702.27-18,878.21

Finding the Fourth Proportional to 30,228.42, 41,702.27 and 18,878.21

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Solution

The fourth proportional to 30,228.42, 41,702.27 and 18,878.21 is: 26,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.42 : 41,702.27 = 18,878.21 : x
  2. Step 2: Convert to fraction form
    30,228.42/41,702.27 = 18,878.21/x
  3. Step 3: Cross multiply
    30,228.42x = 41,702.27 × 18,878.21
  4. Step 4: Simplify right side
    30,228.42x = 787,264,163.34
  5. Step 5: Solve for x
    x = 787,264,163.34/30,228.42
  6. Step 6: Final answer
    x = 26,043.84

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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.