Home / 23,138.10-31,930.60-12,527.76

Finding the Fourth Proportional to 23,138.10, 31,930.60 and 12,527.76

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Solution

The fourth proportional to 23,138.10, 31,930.60 and 12,527.76 is: 17,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,138.10 : 31,930.60 = 12,527.76 : x
  2. Step 2: Convert to fraction form
    23,138.10/31,930.60 = 12,527.76/x
  3. Step 3: Cross multiply
    23,138.10x = 31,930.60 × 12,527.76
  4. Step 4: Simplify right side
    23,138.10x = 400,018,893.46
  5. Step 5: Solve for x
    x = 400,018,893.46/23,138.10
  6. Step 6: Final answer
    x = 17,288.32

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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.