Home / 43,455.51-65,177.82-13,870.89

Finding the Fourth Proportional to 43,455.51, 65,177.82 and 13,870.89

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Solution

The fourth proportional to 43,455.51, 65,177.82 and 13,870.89 is: 20,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,455.51 : 65,177.82 = 13,870.89 : x
  2. Step 2: Convert to fraction form
    43,455.51/65,177.82 = 13,870.89/x
  3. Step 3: Cross multiply
    43,455.51x = 65,177.82 × 13,870.89
  4. Step 4: Simplify right side
    43,455.51x = 904,074,371.66
  5. Step 5: Solve for x
    x = 904,074,371.66/43,455.51
  6. Step 6: Final answer
    x = 20,804.60

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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.