Home / 19,430.88-29,164.54-8,906.55

Finding the Fourth Proportional to 19,430.88, 29,164.54 and 8,906.55

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Solution

The fourth proportional to 19,430.88, 29,164.54 and 8,906.55 is: 13,368.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.88 : 29,164.54 = 8,906.55 : x
  2. Step 2: Convert to fraction form
    19,430.88/29,164.54 = 8,906.55/x
  3. Step 3: Cross multiply
    19,430.88x = 29,164.54 × 8,906.55
  4. Step 4: Simplify right side
    19,430.88x = 259,755,433.74
  5. Step 5: Solve for x
    x = 259,755,433.74/19,430.88
  6. Step 6: Final answer
    x = 13,368.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.