Home / 13,948.95-20,922.99-3,419.00

Finding the Fourth Proportional to 13,948.95, 20,922.99 and 3,419.00

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Solution

The fourth proportional to 13,948.95, 20,922.99 and 3,419.00 is: 5,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.95 : 20,922.99 = 3,419.00 : x
  2. Step 2: Convert to fraction form
    13,948.95/20,922.99 = 3,419.00/x
  3. Step 3: Cross multiply
    13,948.95x = 20,922.99 × 3,419.00
  4. Step 4: Simplify right side
    13,948.95x = 71,535,741.91
  5. Step 5: Solve for x
    x = 71,535,741.91/13,948.95
  6. Step 6: Final answer
    x = 5,128.40

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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.