Home / 21,152.11-29,186.21-12,073.32

Finding the Fourth Proportional to 21,152.11, 29,186.21 and 12,073.32

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Solution

The fourth proportional to 21,152.11, 29,186.21 and 12,073.32 is: 16,659.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.11 : 29,186.21 = 12,073.32 : x
  2. Step 2: Convert to fraction form
    21,152.11/29,186.21 = 12,073.32/x
  3. Step 3: Cross multiply
    21,152.11x = 29,186.21 × 12,073.32
  4. Step 4: Simplify right side
    21,152.11x = 352,374,465.52
  5. Step 5: Solve for x
    x = 352,374,465.52/21,152.11
  6. Step 6: Final answer
    x = 16,659.07

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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.