Home / 30,290.12-45,442.47-12,764.96

Finding the Fourth Proportional to 30,290.12, 45,442.47 and 12,764.96

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Solution

The fourth proportional to 30,290.12, 45,442.47 and 12,764.96 is: 19,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.12 : 45,442.47 = 12,764.96 : x
  2. Step 2: Convert to fraction form
    30,290.12/45,442.47 = 12,764.96/x
  3. Step 3: Cross multiply
    30,290.12x = 45,442.47 × 12,764.96
  4. Step 4: Simplify right side
    30,290.12x = 580,071,166.33
  5. Step 5: Solve for x
    x = 580,071,166.33/30,290.12
  6. Step 6: Final answer
    x = 19,150.51

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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.