Home / 21,027.06-29,017.08-12,074.31

Finding the Fourth Proportional to 21,027.06, 29,017.08 and 12,074.31

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Solution

The fourth proportional to 21,027.06, 29,017.08 and 12,074.31 is: 16,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.06 : 29,017.08 = 12,074.31 : x
  2. Step 2: Convert to fraction form
    21,027.06/29,017.08 = 12,074.31/x
  3. Step 3: Cross multiply
    21,027.06x = 29,017.08 × 12,074.31
  4. Step 4: Simplify right side
    21,027.06x = 350,361,219.21
  5. Step 5: Solve for x
    x = 350,361,219.21/21,027.06
  6. Step 6: Final answer
    x = 16,662.40

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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.