Home / 26,991.63-40,490.10-8,271.45

Finding the Fourth Proportional to 26,991.63, 40,490.10 and 8,271.45

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Solution

The fourth proportional to 26,991.63, 40,490.10 and 8,271.45 is: 12,407.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,991.63 : 40,490.10 = 8,271.45 : x
  2. Step 2: Convert to fraction form
    26,991.63/40,490.10 = 8,271.45/x
  3. Step 3: Cross multiply
    26,991.63x = 40,490.10 × 8,271.45
  4. Step 4: Simplify right side
    26,991.63x = 334,911,837.65
  5. Step 5: Solve for x
    x = 334,911,837.65/26,991.63
  6. Step 6: Final answer
    x = 12,407.99

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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.