Home / 31,107.24-42,933.24-18,534.42

Finding the Fourth Proportional to 31,107.24, 42,933.24 and 18,534.42

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Solution

The fourth proportional to 31,107.24, 42,933.24 and 18,534.42 is: 25,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.24 : 42,933.24 = 18,534.42 : x
  2. Step 2: Convert to fraction form
    31,107.24/42,933.24 = 18,534.42/x
  3. Step 3: Cross multiply
    31,107.24x = 42,933.24 × 18,534.42
  4. Step 4: Simplify right side
    31,107.24x = 795,742,702.12
  5. Step 5: Solve for x
    x = 795,742,702.12/31,107.24
  6. Step 6: Final answer
    x = 25,580.63

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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.