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Finding the Fourth Proportional to 28,410.42, 42,611.52 and 8,683.68

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Solution

The fourth proportional to 28,410.42, 42,611.52 and 8,683.68 is: 13,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.42 : 42,611.52 = 8,683.68 : x
  2. Step 2: Convert to fraction form
    28,410.42/42,611.52 = 8,683.68/x
  3. Step 3: Cross multiply
    28,410.42x = 42,611.52 × 8,683.68
  4. Step 4: Simplify right side
    28,410.42x = 370,024,803.99
  5. Step 5: Solve for x
    x = 370,024,803.99/28,410.42
  6. Step 6: Final answer
    x = 13,024.26

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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.