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Finding the Fourth Proportional to 19,361.04, 29,031.84 and 8,980.08

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Solution

The fourth proportional to 19,361.04, 29,031.84 and 8,980.08 is: 13,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361.04 : 29,031.84 = 8,980.08 : x
  2. Step 2: Convert to fraction form
    19,361.04/29,031.84 = 8,980.08/x
  3. Step 3: Cross multiply
    19,361.04x = 29,031.84 × 8,980.08
  4. Step 4: Simplify right side
    19,361.04x = 260,708,245.75
  5. Step 5: Solve for x
    x = 260,708,245.75/19,361.04
  6. Step 6: Final answer
    x = 13,465.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.