Home / 28,548.02-42,766.64-21,037.95

Finding the Fourth Proportional to 28,548.02, 42,766.64 and 21,037.95

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Solution

The fourth proportional to 28,548.02, 42,766.64 and 21,037.95 is: 31,516.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.02 : 42,766.64 = 21,037.95 : x
  2. Step 2: Convert to fraction form
    28,548.02/42,766.64 = 21,037.95/x
  3. Step 3: Cross multiply
    28,548.02x = 42,766.64 × 21,037.95
  4. Step 4: Simplify right side
    28,548.02x = 899,722,328.80
  5. Step 5: Solve for x
    x = 899,722,328.80/28,548.02
  6. Step 6: Final answer
    x = 31,516.11

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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.