Home / 28,230.12-42,352.12-19,926.35

Finding the Fourth Proportional to 28,230.12, 42,352.12 and 19,926.35

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Solution

The fourth proportional to 28,230.12, 42,352.12 and 19,926.35 is: 29,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.12 : 42,352.12 = 19,926.35 : x
  2. Step 2: Convert to fraction form
    28,230.12/42,352.12 = 19,926.35/x
  3. Step 3: Cross multiply
    28,230.12x = 42,352.12 × 19,926.35
  4. Step 4: Simplify right side
    28,230.12x = 843,923,264.47
  5. Step 5: Solve for x
    x = 843,923,264.47/28,230.12
  6. Step 6: Final answer
    x = 29,894.43

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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.