Home / 30,847.60-42,569.92-17,235.68

Finding the Fourth Proportional to 30,847.60, 42,569.92 and 17,235.68

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Solution

The fourth proportional to 30,847.60, 42,569.92 and 17,235.68 is: 23,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,847.60 : 42,569.92 = 17,235.68 : x
  2. Step 2: Convert to fraction form
    30,847.60/42,569.92 = 17,235.68/x
  3. Step 3: Cross multiply
    30,847.60x = 42,569.92 × 17,235.68
  4. Step 4: Simplify right side
    30,847.60x = 733,721,518.75
  5. Step 5: Solve for x
    x = 733,721,518.75/30,847.60
  6. Step 6: Final answer
    x = 23,785.37

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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.