Home / 21,254.60-29,331.62-11,695.08

Finding the Fourth Proportional to 21,254.60, 29,331.62 and 11,695.08

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Solution

The fourth proportional to 21,254.60, 29,331.62 and 11,695.08 is: 16,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.60 : 29,331.62 = 11,695.08 : x
  2. Step 2: Convert to fraction form
    21,254.60/29,331.62 = 11,695.08/x
  3. Step 3: Cross multiply
    21,254.60x = 29,331.62 × 11,695.08
  4. Step 4: Simplify right side
    21,254.60x = 343,035,642.43
  5. Step 5: Solve for x
    x = 343,035,642.43/21,254.60
  6. Step 6: Final answer
    x = 16,139.36

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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.