Home / 43,579.31-65,368.98-13,999.55

Finding the Fourth Proportional to 43,579.31, 65,368.98 and 13,999.55

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Solution

The fourth proportional to 43,579.31, 65,368.98 and 13,999.55 is: 20,999.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,579.31 : 65,368.98 = 13,999.55 : x
  2. Step 2: Convert to fraction form
    43,579.31/65,368.98 = 13,999.55/x
  3. Step 3: Cross multiply
    43,579.31x = 65,368.98 × 13,999.55
  4. Step 4: Simplify right side
    43,579.31x = 915,136,303.96
  5. Step 5: Solve for x
    x = 915,136,303.96/43,579.31
  6. Step 6: Final answer
    x = 20,999.33

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Similar ratio
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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.