Home / 39,842.16-59,769-12,136.56

Finding the Fourth Proportional to 39,842.16, 59,769 and 12,136.56

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Solution

The fourth proportional to 39,842.16, 59,769 and 12,136.56 is: 18,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.16 : 59,769 = 12,136.56 : x
  2. Step 2: Convert to fraction form
    39,842.16/59,769 = 12,136.56/x
  3. Step 3: Cross multiply
    39,842.16x = 59,769 × 12,136.56
  4. Step 4: Simplify right side
    39,842.16x = 725,390,054.64
  5. Step 5: Solve for x
    x = 725,390,054.64/39,842.16
  6. Step 6: Final answer
    x = 18,206.59

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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.