Home / 21,412.15-29,548.15-11,852.43

Finding the Fourth Proportional to 21,412.15, 29,548.15 and 11,852.43

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Solution

The fourth proportional to 21,412.15, 29,548.15 and 11,852.43 is: 16,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.15 : 29,548.15 = 11,852.43 : x
  2. Step 2: Convert to fraction form
    21,412.15/29,548.15 = 11,852.43/x
  3. Step 3: Cross multiply
    21,412.15x = 29,548.15 × 11,852.43
  4. Step 4: Simplify right side
    21,412.15x = 350,217,379.50
  5. Step 5: Solve for x
    x = 350,217,379.50/21,412.15
  6. Step 6: Final answer
    x = 16,356.01

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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.