Home / 22,860.96-31,549.60-12,790.32

Finding the Fourth Proportional to 22,860.96, 31,549.60 and 12,790.32

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Solution

The fourth proportional to 22,860.96, 31,549.60 and 12,790.32 is: 17,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,860.96 : 31,549.60 = 12,790.32 : x
  2. Step 2: Convert to fraction form
    22,860.96/31,549.60 = 12,790.32/x
  3. Step 3: Cross multiply
    22,860.96x = 31,549.60 × 12,790.32
  4. Step 4: Simplify right side
    22,860.96x = 403,529,479.87
  5. Step 5: Solve for x
    x = 403,529,479.87/22,860.96
  6. Step 6: Final answer
    x = 17,651.47

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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.