Home / 21,305.01-29,400.93-11,873.55

Finding the Fourth Proportional to 21,305.01, 29,400.93 and 11,873.55

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Solution

The fourth proportional to 21,305.01, 29,400.93 and 11,873.55 is: 16,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.01 : 29,400.93 = 11,873.55 : x
  2. Step 2: Convert to fraction form
    21,305.01/29,400.93 = 11,873.55/x
  3. Step 3: Cross multiply
    21,305.01x = 29,400.93 × 11,873.55
  4. Step 4: Simplify right side
    21,305.01x = 349,093,412.40
  5. Step 5: Solve for x
    x = 349,093,412.40/21,305.01
  6. Step 6: Final answer
    x = 16,385.51

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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.