Home / 31,120.86-46,688.58-17,977.02

Finding the Fourth Proportional to 31,120.86, 46,688.58 and 17,977.02

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Solution

The fourth proportional to 31,120.86, 46,688.58 and 17,977.02 is: 26,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,120.86 : 46,688.58 = 17,977.02 : x
  2. Step 2: Convert to fraction form
    31,120.86/46,688.58 = 17,977.02/x
  3. Step 3: Cross multiply
    31,120.86x = 46,688.58 × 17,977.02
  4. Step 4: Simplify right side
    31,120.86x = 839,321,536.43
  5. Step 5: Solve for x
    x = 839,321,536.43/31,120.86
  6. Step 6: Final answer
    x = 26,969.74

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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.