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Finding the Fourth Proportional to 28,202.53, 42,303.84 and 11,559.58

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Solution

The fourth proportional to 28,202.53, 42,303.84 and 11,559.58 is: 17,339.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.53 : 42,303.84 = 11,559.58 : x
  2. Step 2: Convert to fraction form
    28,202.53/42,303.84 = 11,559.58/x
  3. Step 3: Cross multiply
    28,202.53x = 42,303.84 × 11,559.58
  4. Step 4: Simplify right side
    28,202.53x = 489,014,622.79
  5. Step 5: Solve for x
    x = 489,014,622.79/28,202.53
  6. Step 6: Final answer
    x = 17,339.39

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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.