Home / 43,468.80-65,203.68-13,886.40

Finding the Fourth Proportional to 43,468.80, 65,203.68 and 13,886.40

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Solution

The fourth proportional to 43,468.80, 65,203.68 and 13,886.40 is: 20,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,468.80 : 65,203.68 = 13,886.40 : x
  2. Step 2: Convert to fraction form
    43,468.80/65,203.68 = 13,886.40/x
  3. Step 3: Cross multiply
    43,468.80x = 65,203.68 × 13,886.40
  4. Step 4: Simplify right side
    43,468.80x = 905,444,381.95
  5. Step 5: Solve for x
    x = 905,444,381.95/43,468.80
  6. Step 6: Final answer
    x = 20,829.75

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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.