Home / 19,684.27-29,493.53-13,830.40

Finding the Fourth Proportional to 19,684.27, 29,493.53 and 13,830.40

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Solution

The fourth proportional to 19,684.27, 29,493.53 and 13,830.40 is: 20,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.27 : 29,493.53 = 13,830.40 : x
  2. Step 2: Convert to fraction form
    19,684.27/29,493.53 = 13,830.40/x
  3. Step 3: Cross multiply
    19,684.27x = 29,493.53 × 13,830.40
  4. Step 4: Simplify right side
    19,684.27x = 407,907,317.31
  5. Step 5: Solve for x
    x = 407,907,317.31/19,684.27
  6. Step 6: Final answer
    x = 20,722.50

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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.