Home / 19,659.69-29,484.36-13,418.55

Finding the Fourth Proportional to 19,659.69, 29,484.36 and 13,418.55

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Solution

The fourth proportional to 19,659.69, 29,484.36 and 13,418.55 is: 20,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.69 : 29,484.36 = 13,418.55 : x
  2. Step 2: Convert to fraction form
    19,659.69/29,484.36 = 13,418.55/x
  3. Step 3: Cross multiply
    19,659.69x = 29,484.36 × 13,418.55
  4. Step 4: Simplify right side
    19,659.69x = 395,637,358.88
  5. Step 5: Solve for x
    x = 395,637,358.88/19,659.69
  6. Step 6: Final answer
    x = 20,124.29

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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.