Home / 21,190.93-29,242.02-11,758.75

Finding the Fourth Proportional to 21,190.93, 29,242.02 and 11,758.75

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Solution

The fourth proportional to 21,190.93, 29,242.02 and 11,758.75 is: 16,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.93 : 29,242.02 = 11,758.75 : x
  2. Step 2: Convert to fraction form
    21,190.93/29,242.02 = 11,758.75/x
  3. Step 3: Cross multiply
    21,190.93x = 29,242.02 × 11,758.75
  4. Step 4: Simplify right side
    21,190.93x = 343,849,602.68
  5. Step 5: Solve for x
    x = 343,849,602.68/21,190.93
  6. Step 6: Final answer
    x = 16,226.26

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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.