Home / 40,890.30-56,434.59-22,986.78

Finding the Fourth Proportional to 40,890.30, 56,434.59 and 22,986.78

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Solution

The fourth proportional to 40,890.30, 56,434.59 and 22,986.78 is: 31,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,890.30 : 56,434.59 = 22,986.78 : x
  2. Step 2: Convert to fraction form
    40,890.30/56,434.59 = 22,986.78/x
  3. Step 3: Cross multiply
    40,890.30x = 56,434.59 × 22,986.78
  4. Step 4: Simplify right side
    40,890.30x = 1,297,249,504.72
  5. Step 5: Solve for x
    x = 1,297,249,504.72/40,890.30
  6. Step 6: Final answer
    x = 31,725.12

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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.