Home / 26,423.89-39,642.44-18,647.89

Finding the Fourth Proportional to 26,423.89, 39,642.44 and 18,647.89

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Solution

The fourth proportional to 26,423.89, 39,642.44 and 18,647.89 is: 27,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,423.89 : 39,642.44 = 18,647.89 : x
  2. Step 2: Convert to fraction form
    26,423.89/39,642.44 = 18,647.89/x
  3. Step 3: Cross multiply
    26,423.89x = 39,642.44 × 18,647.89
  4. Step 4: Simplify right side
    26,423.89x = 739,247,767.21
  5. Step 5: Solve for x
    x = 739,247,767.21/26,423.89
  6. Step 6: Final answer
    x = 27,976.49

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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.