Home / 23,108.12-31,889.21-13,038.69

Finding the Fourth Proportional to 23,108.12, 31,889.21 and 13,038.69

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Solution

The fourth proportional to 23,108.12, 31,889.21 and 13,038.69 is: 17,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,108.12 : 31,889.21 = 13,038.69 : x
  2. Step 2: Convert to fraction form
    23,108.12/31,889.21 = 13,038.69/x
  3. Step 3: Cross multiply
    23,108.12x = 31,889.21 × 13,038.69
  4. Step 4: Simplify right side
    23,108.12x = 415,793,458.34
  5. Step 5: Solve for x
    x = 415,793,458.34/23,108.12
  6. Step 6: Final answer
    x = 17,993.40

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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.