Home / 43,890.93-65,842.89-12,722.13

Finding the Fourth Proportional to 43,890.93, 65,842.89 and 12,722.13

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Solution

The fourth proportional to 43,890.93, 65,842.89 and 12,722.13 is: 19,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,890.93 : 65,842.89 = 12,722.13 : x
  2. Step 2: Convert to fraction form
    43,890.93/65,842.89 = 12,722.13/x
  3. Step 3: Cross multiply
    43,890.93x = 65,842.89 × 12,722.13
  4. Step 4: Simplify right side
    43,890.93x = 837,661,806.16
  5. Step 5: Solve for x
    x = 837,661,806.16/43,890.93
  6. Step 6: Final answer
    x = 19,085.08

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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.