Home / 21,634.51-29,855.85-12,075.30

Finding the Fourth Proportional to 21,634.51, 29,855.85 and 12,075.30

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Solution

The fourth proportional to 21,634.51, 29,855.85 and 12,075.30 is: 16,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.51 : 29,855.85 = 12,075.30 : x
  2. Step 2: Convert to fraction form
    21,634.51/29,855.85 = 12,075.30/x
  3. Step 3: Cross multiply
    21,634.51x = 29,855.85 × 12,075.30
  4. Step 4: Simplify right side
    21,634.51x = 360,518,345.51
  5. Step 5: Solve for x
    x = 360,518,345.51/21,634.51
  6. Step 6: Final answer
    x = 16,664.04

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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.