Home / 43,805.34-65,710.26-12,643.02

Finding the Fourth Proportional to 43,805.34, 65,710.26 and 12,643.02

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Solution

The fourth proportional to 43,805.34, 65,710.26 and 12,643.02 is: 18,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,805.34 : 65,710.26 = 12,643.02 : x
  2. Step 2: Convert to fraction form
    43,805.34/65,710.26 = 12,643.02/x
  3. Step 3: Cross multiply
    43,805.34x = 65,710.26 × 12,643.02
  4. Step 4: Simplify right side
    43,805.34x = 830,776,131.39
  5. Step 5: Solve for x
    x = 830,776,131.39/43,805.34
  6. Step 6: Final answer
    x = 18,965.18

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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.