Home / 30,656.60-45,976.26-13,145.48

Finding the Fourth Proportional to 30,656.60, 45,976.26 and 13,145.48

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Solution

The fourth proportional to 30,656.60, 45,976.26 and 13,145.48 is: 19,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,656.60 : 45,976.26 = 13,145.48 : x
  2. Step 2: Convert to fraction form
    30,656.60/45,976.26 = 13,145.48/x
  3. Step 3: Cross multiply
    30,656.60x = 45,976.26 × 13,145.48
  4. Step 4: Simplify right side
    30,656.60x = 604,380,006.30
  5. Step 5: Solve for x
    x = 604,380,006.30/30,656.60
  6. Step 6: Final answer
    x = 19,714.52

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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.