Home / 18,981.34-26,180.09-16,830.41

Finding the Fourth Proportional to 18,981.34, 26,180.09 and 16,830.41

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Solution

The fourth proportional to 18,981.34, 26,180.09 and 16,830.41 is: 23,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.34 : 26,180.09 = 16,830.41 : x
  2. Step 2: Convert to fraction form
    18,981.34/26,180.09 = 16,830.41/x
  3. Step 3: Cross multiply
    18,981.34x = 26,180.09 × 16,830.41
  4. Step 4: Simplify right side
    18,981.34x = 440,621,690.61
  5. Step 5: Solve for x
    x = 440,621,690.61/18,981.34
  6. Step 6: Final answer
    x = 23,213.41

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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.