Home / 19,416.64-29,130.72-8,317.84

Finding the Fourth Proportional to 19,416.64, 29,130.72 and 8,317.84

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Solution

The fourth proportional to 19,416.64, 29,130.72 and 8,317.84 is: 12,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.64 : 29,130.72 = 8,317.84 : x
  2. Step 2: Convert to fraction form
    19,416.64/29,130.72 = 8,317.84/x
  3. Step 3: Cross multiply
    19,416.64x = 29,130.72 × 8,317.84
  4. Step 4: Simplify right side
    19,416.64x = 242,304,668.04
  5. Step 5: Solve for x
    x = 242,304,668.04/19,416.64
  6. Step 6: Final answer
    x = 12,479.23

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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.