Home / 30,973.36-42,743.26-16,826.50

Finding the Fourth Proportional to 30,973.36, 42,743.26 and 16,826.50

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Solution

The fourth proportional to 30,973.36, 42,743.26 and 16,826.50 is: 23,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,973.36 : 42,743.26 = 16,826.50 : x
  2. Step 2: Convert to fraction form
    30,973.36/42,743.26 = 16,826.50/x
  3. Step 3: Cross multiply
    30,973.36x = 42,743.26 × 16,826.50
  4. Step 4: Simplify right side
    30,973.36x = 719,219,464.39
  5. Step 5: Solve for x
    x = 719,219,464.39/30,973.36
  6. Step 6: Final answer
    x = 23,220.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.