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Finding the Fourth Proportional to 43,556.88, 65,329.16 and 13,970.88

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Solution

The fourth proportional to 43,556.88, 65,329.16 and 13,970.88 is: 20,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,556.88 : 65,329.16 = 13,970.88 : x
  2. Step 2: Convert to fraction form
    43,556.88/65,329.16 = 13,970.88/x
  3. Step 3: Cross multiply
    43,556.88x = 65,329.16 × 13,970.88
  4. Step 4: Simplify right side
    43,556.88x = 912,705,854.86
  5. Step 5: Solve for x
    x = 912,705,854.86/43,556.88
  6. Step 6: Final answer
    x = 20,954.34

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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.