Home / 18,111.36-24,972.63-16,990.50

Finding the Fourth Proportional to 18,111.36, 24,972.63 and 16,990.50

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Solution

The fourth proportional to 18,111.36, 24,972.63 and 16,990.50 is: 23,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.36 : 24,972.63 = 16,990.50 : x
  2. Step 2: Convert to fraction form
    18,111.36/24,972.63 = 16,990.50/x
  3. Step 3: Cross multiply
    18,111.36x = 24,972.63 × 16,990.50
  4. Step 4: Simplify right side
    18,111.36x = 424,297,470.02
  5. Step 5: Solve for x
    x = 424,297,470.02/18,111.36
  6. Step 6: Final answer
    x = 23,427.15

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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.