Home / 21,467.88-29,628.54-12,518.16

Finding the Fourth Proportional to 21,467.88, 29,628.54 and 12,518.16

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Solution

The fourth proportional to 21,467.88, 29,628.54 and 12,518.16 is: 17,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.88 : 29,628.54 = 12,518.16 : x
  2. Step 2: Convert to fraction form
    21,467.88/29,628.54 = 12,518.16/x
  3. Step 3: Cross multiply
    21,467.88x = 29,628.54 × 12,518.16
  4. Step 4: Simplify right side
    21,467.88x = 370,894,804.29
  5. Step 5: Solve for x
    x = 370,894,804.29/21,467.88
  6. Step 6: Final answer
    x = 17,276.73

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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.