Home / 21,063.45-29,073.87-12,571.51

Finding the Fourth Proportional to 21,063.45, 29,073.87 and 12,571.51

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Solution

The fourth proportional to 21,063.45, 29,073.87 and 12,571.51 is: 17,352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.45 : 29,073.87 = 12,571.51 : x
  2. Step 2: Convert to fraction form
    21,063.45/29,073.87 = 12,571.51/x
  3. Step 3: Cross multiply
    21,063.45x = 29,073.87 × 12,571.51
  4. Step 4: Simplify right side
    21,063.45x = 365,502,447.44
  5. Step 5: Solve for x
    x = 365,502,447.44/21,063.45
  6. Step 6: Final answer
    x = 17,352.45

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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.