Home / 30,599.37-42,221.52-20,542.41

Finding the Fourth Proportional to 30,599.37, 42,221.52 and 20,542.41

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Solution

The fourth proportional to 30,599.37, 42,221.52 and 20,542.41 is: 28,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.37 : 42,221.52 = 20,542.41 : x
  2. Step 2: Convert to fraction form
    30,599.37/42,221.52 = 20,542.41/x
  3. Step 3: Cross multiply
    30,599.37x = 42,221.52 × 20,542.41
  4. Step 4: Simplify right side
    30,599.37x = 867,331,774.66
  5. Step 5: Solve for x
    x = 867,331,774.66/30,599.37
  6. Step 6: Final answer
    x = 28,344.76

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1.5x scale

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.