Home / 21,257.89-29,305.17-14,075.77

Finding the Fourth Proportional to 21,257.89, 29,305.17 and 14,075.77

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Solution

The fourth proportional to 21,257.89, 29,305.17 and 14,075.77 is: 19,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257.89 : 29,305.17 = 14,075.77 : x
  2. Step 2: Convert to fraction form
    21,257.89/29,305.17 = 14,075.77/x
  3. Step 3: Cross multiply
    21,257.89x = 29,305.17 × 14,075.77
  4. Step 4: Simplify right side
    21,257.89x = 412,492,832.73
  5. Step 5: Solve for x
    x = 412,492,832.73/21,257.89
  6. Step 6: Final answer
    x = 19,404.22

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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.