Home / 23,090.07-31,861.45-12,878.71

Finding the Fourth Proportional to 23,090.07, 31,861.45 and 12,878.71

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Solution

The fourth proportional to 23,090.07, 31,861.45 and 12,878.71 is: 17,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,090.07 : 31,861.45 = 12,878.71 : x
  2. Step 2: Convert to fraction form
    23,090.07/31,861.45 = 12,878.71/x
  3. Step 3: Cross multiply
    23,090.07x = 31,861.45 × 12,878.71
  4. Step 4: Simplify right side
    23,090.07x = 410,334,374.73
  5. Step 5: Solve for x
    x = 410,334,374.73/23,090.07
  6. Step 6: Final answer
    x = 17,771.03

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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.