Home / 21,268.08-29,350.02-11,708.16

Finding the Fourth Proportional to 21,268.08, 29,350.02 and 11,708.16

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Solution

The fourth proportional to 21,268.08, 29,350.02 and 11,708.16 is: 16,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.08 : 29,350.02 = 11,708.16 : x
  2. Step 2: Convert to fraction form
    21,268.08/29,350.02 = 11,708.16/x
  3. Step 3: Cross multiply
    21,268.08x = 29,350.02 × 11,708.16
  4. Step 4: Simplify right side
    21,268.08x = 343,634,730.16
  5. Step 5: Solve for x
    x = 343,634,730.16/21,268.08
  6. Step 6: Final answer
    x = 16,157.30

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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.