Home / 19,015.88-28,528.36-5,690

Finding the Fourth Proportional to 19,015.88, 28,528.36 and 5,690

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Solution

The fourth proportional to 19,015.88, 28,528.36 and 5,690 is: 8,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.88 : 28,528.36 = 5,690 : x
  2. Step 2: Convert to fraction form
    19,015.88/28,528.36 = 5,690/x
  3. Step 3: Cross multiply
    19,015.88x = 28,528.36 × 5,690
  4. Step 4: Simplify right side
    19,015.88x = 162,326,368.40
  5. Step 5: Solve for x
    x = 162,326,368.40/19,015.88
  6. Step 6: Final answer
    x = 8,536.36

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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.