Home / 19,994.40-29,959.20-16,689.60

Finding the Fourth Proportional to 19,994.40, 29,959.20 and 16,689.60

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Solution

The fourth proportional to 19,994.40, 29,959.20 and 16,689.60 is: 25,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.40 : 29,959.20 = 16,689.60 : x
  2. Step 2: Convert to fraction form
    19,994.40/29,959.20 = 16,689.60/x
  3. Step 3: Cross multiply
    19,994.40x = 29,959.20 × 16,689.60
  4. Step 4: Simplify right side
    19,994.40x = 500,007,064.32
  5. Step 5: Solve for x
    x = 500,007,064.32/19,994.40
  6. Step 6: Final answer
    x = 25,007.36

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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.