Home / 39,969.99-59,889.38-13,660.38

Finding the Fourth Proportional to 39,969.99, 59,889.38 and 13,660.38

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Solution

The fourth proportional to 39,969.99, 59,889.38 and 13,660.38 is: 20,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.99 : 59,889.38 = 13,660.38 : x
  2. Step 2: Convert to fraction form
    39,969.99/59,889.38 = 13,660.38/x
  3. Step 3: Cross multiply
    39,969.99x = 59,889.38 × 13,660.38
  4. Step 4: Simplify right side
    39,969.99x = 818,111,620.46
  5. Step 5: Solve for x
    x = 818,111,620.46/39,969.99
  6. Step 6: Final answer
    x = 20,468.15

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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.