Home / 19,656.32-29,479.27-13,415.21

Finding the Fourth Proportional to 19,656.32, 29,479.27 and 13,415.21

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Solution

The fourth proportional to 19,656.32, 29,479.27 and 13,415.21 is: 20,119.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.32 : 29,479.27 = 13,415.21 : x
  2. Step 2: Convert to fraction form
    19,656.32/29,479.27 = 13,415.21/x
  3. Step 3: Cross multiply
    19,656.32x = 29,479.27 × 13,415.21
  4. Step 4: Simplify right side
    19,656.32x = 395,470,597.70
  5. Step 5: Solve for x
    x = 395,470,597.70/19,656.32
  6. Step 6: Final answer
    x = 20,119.26

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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.