Home / 30,893.16-42,650.94-20,301.24

Finding the Fourth Proportional to 30,893.16, 42,650.94 and 20,301.24

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Solution

The fourth proportional to 30,893.16, 42,650.94 and 20,301.24 is: 28,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,893.16 : 42,650.94 = 20,301.24 : x
  2. Step 2: Convert to fraction form
    30,893.16/42,650.94 = 20,301.24/x
  3. Step 3: Cross multiply
    30,893.16x = 42,650.94 × 20,301.24
  4. Step 4: Simplify right side
    30,893.16x = 865,866,969.17
  5. Step 5: Solve for x
    x = 865,866,969.17/30,893.16
  6. Step 6: Final answer
    x = 28,027.79

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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.