Home / 21,435.94-29,594.73-16,977.70

Finding the Fourth Proportional to 21,435.94, 29,594.73 and 16,977.70

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Solution

The fourth proportional to 21,435.94, 29,594.73 and 16,977.70 is: 23,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.94 : 29,594.73 = 16,977.70 : x
  2. Step 2: Convert to fraction form
    21,435.94/29,594.73 = 16,977.70/x
  3. Step 3: Cross multiply
    21,435.94x = 29,594.73 × 16,977.70
  4. Step 4: Simplify right side
    21,435.94x = 502,450,447.52
  5. Step 5: Solve for x
    x = 502,450,447.52/21,435.94
  6. Step 6: Final answer
    x = 23,439.63

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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.