Home / 43,740.12-65,620.59-14,157.95

Finding the Fourth Proportional to 43,740.12, 65,620.59 and 14,157.95

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Solution

The fourth proportional to 43,740.12, 65,620.59 and 14,157.95 is: 21,240.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,740.12 : 65,620.59 = 14,157.95 : x
  2. Step 2: Convert to fraction form
    43,740.12/65,620.59 = 14,157.95/x
  3. Step 3: Cross multiply
    43,740.12x = 65,620.59 × 14,157.95
  4. Step 4: Simplify right side
    43,740.12x = 929,052,897.07
  5. Step 5: Solve for x
    x = 929,052,897.07/43,740.12
  6. Step 6: Final answer
    x = 21,240.29

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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.