Home / 19,994.10-30,009.57-18,788.55

Finding the Fourth Proportional to 19,994.10, 30,009.57 and 18,788.55

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Solution

The fourth proportional to 19,994.10, 30,009.57 and 18,788.55 is: 28,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.10 : 30,009.57 = 18,788.55 : x
  2. Step 2: Convert to fraction form
    19,994.10/30,009.57 = 18,788.55/x
  3. Step 3: Cross multiply
    19,994.10x = 30,009.57 × 18,788.55
  4. Step 4: Simplify right side
    19,994.10x = 563,836,306.42
  5. Step 5: Solve for x
    x = 563,836,306.42/19,994.10
  6. Step 6: Final answer
    x = 28,200.13

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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.