Home / 23,000.08-31,739.16-12,790.72

Finding the Fourth Proportional to 23,000.08, 31,739.16 and 12,790.72

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Solution

The fourth proportional to 23,000.08, 31,739.16 and 12,790.72 is: 17,650.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,000.08 : 31,739.16 = 12,790.72 : x
  2. Step 2: Convert to fraction form
    23,000.08/31,739.16 = 12,790.72/x
  3. Step 3: Cross multiply
    23,000.08x = 31,739.16 × 12,790.72
  4. Step 4: Simplify right side
    23,000.08x = 405,966,708.60
  5. Step 5: Solve for x
    x = 405,966,708.60/23,000.08
  6. Step 6: Final answer
    x = 17,650.67

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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.