Home / 23,111.16-31,893.24-12,500.64

Finding the Fourth Proportional to 23,111.16, 31,893.24 and 12,500.64

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Solution

The fourth proportional to 23,111.16, 31,893.24 and 12,500.64 is: 17,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,111.16 : 31,893.24 = 12,500.64 : x
  2. Step 2: Convert to fraction form
    23,111.16/31,893.24 = 12,500.64/x
  3. Step 3: Cross multiply
    23,111.16x = 31,893.24 × 12,500.64
  4. Step 4: Simplify right side
    23,111.16x = 398,685,911.67
  5. Step 5: Solve for x
    x = 398,685,911.67/23,111.16
  6. Step 6: Final answer
    x = 17,250.80

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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.