Home / 18,972.98-26,190.10-16,980.08

Finding the Fourth Proportional to 18,972.98, 26,190.10 and 16,980.08

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Solution

The fourth proportional to 18,972.98, 26,190.10 and 16,980.08 is: 23,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.98 : 26,190.10 = 16,980.08 : x
  2. Step 2: Convert to fraction form
    18,972.98/26,190.10 = 16,980.08/x
  3. Step 3: Cross multiply
    18,972.98x = 26,190.10 × 16,980.08
  4. Step 4: Simplify right side
    18,972.98x = 444,709,862.26
  5. Step 5: Solve for x
    x = 444,709,862.26/18,972.98
  6. Step 6: Final answer
    x = 23,439.12

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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.