Home / 39,969.99-59,966.91-11,890.98

Finding the Fourth Proportional to 39,969.99, 59,966.91 and 11,890.98

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Solution

The fourth proportional to 39,969.99, 59,966.91 and 11,890.98 is: 17,840.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.99 : 59,966.91 = 11,890.98 : x
  2. Step 2: Convert to fraction form
    39,969.99/59,966.91 = 11,890.98/x
  3. Step 3: Cross multiply
    39,969.99x = 59,966.91 × 11,890.98
  4. Step 4: Simplify right side
    39,969.99x = 713,065,327.47
  5. Step 5: Solve for x
    x = 713,065,327.47/39,969.99
  6. Step 6: Final answer
    x = 17,840.02

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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.