Home / 23,119.60-31,899.48-13,690.48

Finding the Fourth Proportional to 23,119.60, 31,899.48 and 13,690.48

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Solution

The fourth proportional to 23,119.60, 31,899.48 and 13,690.48 is: 18,889.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.60 : 31,899.48 = 13,690.48 : x
  2. Step 2: Convert to fraction form
    23,119.60/31,899.48 = 13,690.48/x
  3. Step 3: Cross multiply
    23,119.60x = 31,899.48 × 13,690.48
  4. Step 4: Simplify right side
    23,119.60x = 436,719,192.95
  5. Step 5: Solve for x
    x = 436,719,192.95/23,119.60
  6. Step 6: Final answer
    x = 18,889.57

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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.