Home / 28,651.02-42,989.44-15,487.98

Finding the Fourth Proportional to 28,651.02, 42,989.44 and 15,487.98

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Solution

The fourth proportional to 28,651.02, 42,989.44 and 15,487.98 is: 23,238.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.02 : 42,989.44 = 15,487.98 : x
  2. Step 2: Convert to fraction form
    28,651.02/42,989.44 = 15,487.98/x
  3. Step 3: Cross multiply
    28,651.02x = 42,989.44 × 15,487.98
  4. Step 4: Simplify right side
    28,651.02x = 665,819,586.93
  5. Step 5: Solve for x
    x = 665,819,586.93/28,651.02
  6. Step 6: Final answer
    x = 23,238.95

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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.