Home / 21,442.05-29,591.60-12,946.23

Finding the Fourth Proportional to 21,442.05, 29,591.60 and 12,946.23

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Solution

The fourth proportional to 21,442.05, 29,591.60 and 12,946.23 is: 17,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.05 : 29,591.60 = 12,946.23 : x
  2. Step 2: Convert to fraction form
    21,442.05/29,591.60 = 12,946.23/x
  3. Step 3: Cross multiply
    21,442.05x = 29,591.60 × 12,946.23
  4. Step 4: Simplify right side
    21,442.05x = 383,099,594.94
  5. Step 5: Solve for x
    x = 383,099,594.94/21,442.05
  6. Step 6: Final answer
    x = 17,866.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.