Home / 30,378.22-45,567.32-12,848.20

Finding the Fourth Proportional to 30,378.22, 45,567.32 and 12,848.20

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Solution

The fourth proportional to 30,378.22, 45,567.32 and 12,848.20 is: 19,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.22 : 45,567.32 = 12,848.20 : x
  2. Step 2: Convert to fraction form
    30,378.22/45,567.32 = 12,848.20/x
  3. Step 3: Cross multiply
    30,378.22x = 45,567.32 × 12,848.20
  4. Step 4: Simplify right side
    30,378.22x = 585,458,040.82
  5. Step 5: Solve for x
    x = 585,458,040.82/30,378.22
  6. Step 6: Final answer
    x = 19,272.30

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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.