Home / 35,878.08-49,511.94-21,720.84

Finding the Fourth Proportional to 35,878.08, 49,511.94 and 21,720.84

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Solution

The fourth proportional to 35,878.08, 49,511.94 and 21,720.84 is: 29,974.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,878.08 : 49,511.94 = 21,720.84 : x
  2. Step 2: Convert to fraction form
    35,878.08/49,511.94 = 21,720.84/x
  3. Step 3: Cross multiply
    35,878.08x = 49,511.94 × 21,720.84
  4. Step 4: Simplify right side
    35,878.08x = 1,075,440,926.83
  5. Step 5: Solve for x
    x = 1,075,440,926.83/35,878.08
  6. Step 6: Final answer
    x = 29,974.87

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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.