Home / 43,499.09-65,258.36-13,918.70

Finding the Fourth Proportional to 43,499.09, 65,258.36 and 13,918.70

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Solution

The fourth proportional to 43,499.09, 65,258.36 and 13,918.70 is: 20,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,499.09 : 65,258.36 = 13,918.70 : x
  2. Step 2: Convert to fraction form
    43,499.09/65,258.36 = 13,918.70/x
  3. Step 3: Cross multiply
    43,499.09x = 65,258.36 × 13,918.70
  4. Step 4: Simplify right side
    43,499.09x = 908,311,681.08
  5. Step 5: Solve for x
    x = 908,311,681.08/43,499.09
  6. Step 6: Final answer
    x = 20,881.16

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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.