Home / 30,482.22-45,708.75-12,942.48

Finding the Fourth Proportional to 30,482.22, 45,708.75 and 12,942.48

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Solution

The fourth proportional to 30,482.22, 45,708.75 and 12,942.48 is: 19,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.22 : 45,708.75 = 12,942.48 : x
  2. Step 2: Convert to fraction form
    30,482.22/45,708.75 = 12,942.48/x
  3. Step 3: Cross multiply
    30,482.22x = 45,708.75 × 12,942.48
  4. Step 4: Simplify right side
    30,482.22x = 591,584,582.70
  5. Step 5: Solve for x
    x = 591,584,582.70/30,482.22
  6. Step 6: Final answer
    x = 19,407.53

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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.