Home / 21,169.04-29,199.89-13,602.36

Finding the Fourth Proportional to 21,169.04, 29,199.89 and 13,602.36

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Solution

The fourth proportional to 21,169.04, 29,199.89 and 13,602.36 is: 18,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.04 : 29,199.89 = 13,602.36 : x
  2. Step 2: Convert to fraction form
    21,169.04/29,199.89 = 13,602.36/x
  3. Step 3: Cross multiply
    21,169.04x = 29,199.89 × 13,602.36
  4. Step 4: Simplify right side
    21,169.04x = 397,187,347.73
  5. Step 5: Solve for x
    x = 397,187,347.73/21,169.04
  6. Step 6: Final answer
    x = 18,762.66

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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.