Home / 21,955.04-30,297.96-12,019.04

Finding the Fourth Proportional to 21,955.04, 30,297.96 and 12,019.04

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Solution

The fourth proportional to 21,955.04, 30,297.96 and 12,019.04 is: 16,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.04 : 30,297.96 = 12,019.04 : x
  2. Step 2: Convert to fraction form
    21,955.04/30,297.96 = 12,019.04/x
  3. Step 3: Cross multiply
    21,955.04x = 30,297.96 × 12,019.04
  4. Step 4: Simplify right side
    21,955.04x = 364,152,393.16
  5. Step 5: Solve for x
    x = 364,152,393.16/21,955.04
  6. Step 6: Final answer
    x = 16,586.28

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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.