Home / 19,689.69-29,529.27-13,448.64

Finding the Fourth Proportional to 19,689.69, 29,529.27 and 13,448.64

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Solution

The fourth proportional to 19,689.69, 29,529.27 and 13,448.64 is: 20,169.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.69 : 29,529.27 = 13,448.64 : x
  2. Step 2: Convert to fraction form
    19,689.69/29,529.27 = 13,448.64/x
  3. Step 3: Cross multiply
    19,689.69x = 29,529.27 × 13,448.64
  4. Step 4: Simplify right side
    19,689.69x = 397,128,521.69
  5. Step 5: Solve for x
    x = 397,128,521.69/19,689.69
  6. Step 6: Final answer
    x = 20,169.36

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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.