Home / 43,905.36-65,863.76-14,312.80

Finding the Fourth Proportional to 43,905.36, 65,863.76 and 14,312.80

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Solution

The fourth proportional to 43,905.36, 65,863.76 and 14,312.80 is: 21,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.36 : 65,863.76 = 14,312.80 : x
  2. Step 2: Convert to fraction form
    43,905.36/65,863.76 = 14,312.80/x
  3. Step 3: Cross multiply
    43,905.36x = 65,863.76 × 14,312.80
  4. Step 4: Simplify right side
    43,905.36x = 942,694,824.13
  5. Step 5: Solve for x
    x = 942,694,824.13/43,905.36
  6. Step 6: Final answer
    x = 21,471.06

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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.