Home / 40,643.88-56,107.74-30,576.17

Finding the Fourth Proportional to 40,643.88, 56,107.74 and 30,576.17

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Solution

The fourth proportional to 40,643.88, 56,107.74 and 30,576.17 is: 42,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,643.88 : 56,107.74 = 30,576.17 : x
  2. Step 2: Convert to fraction form
    40,643.88/56,107.74 = 30,576.17/x
  3. Step 3: Cross multiply
    40,643.88x = 56,107.74 × 30,576.17
  4. Step 4: Simplify right side
    40,643.88x = 1,715,559,563.89
  5. Step 5: Solve for x
    x = 1,715,559,563.89/40,643.88
  6. Step 6: Final answer
    x = 42,209.54

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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.