Home / 26,621.72-36,718.98-18,665.72

Finding the Fourth Proportional to 26,621.72, 36,718.98 and 18,665.72

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Solution

The fourth proportional to 26,621.72, 36,718.98 and 18,665.72 is: 25,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,621.72 : 36,718.98 = 18,665.72 : x
  2. Step 2: Convert to fraction form
    26,621.72/36,718.98 = 18,665.72/x
  3. Step 3: Cross multiply
    26,621.72x = 36,718.98 × 18,665.72
  4. Step 4: Simplify right side
    26,621.72x = 685,386,199.37
  5. Step 5: Solve for x
    x = 685,386,199.37/26,621.72
  6. Step 6: Final answer
    x = 25,745.38

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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.