Home / 26,156.84-39,196.98-12,991.10

Finding the Fourth Proportional to 26,156.84, 39,196.98 and 12,991.10

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Solution

The fourth proportional to 26,156.84, 39,196.98 and 12,991.10 is: 19,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,156.84 : 39,196.98 = 12,991.10 : x
  2. Step 2: Convert to fraction form
    26,156.84/39,196.98 = 12,991.10/x
  3. Step 3: Cross multiply
    26,156.84x = 39,196.98 × 12,991.10
  4. Step 4: Simplify right side
    26,156.84x = 509,211,690.89
  5. Step 5: Solve for x
    x = 509,211,690.89/26,156.84
  6. Step 6: Final answer
    x = 19,467.63

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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.