Home / 30,051.30-45,081.06-12,517.03

Finding the Fourth Proportional to 30,051.30, 45,081.06 and 12,517.03

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Solution

The fourth proportional to 30,051.30, 45,081.06 and 12,517.03 is: 18,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,051.30 : 45,081.06 = 12,517.03 : x
  2. Step 2: Convert to fraction form
    30,051.30/45,081.06 = 12,517.03/x
  3. Step 3: Cross multiply
    30,051.30x = 45,081.06 × 12,517.03
  4. Step 4: Simplify right side
    30,051.30x = 564,280,989.86
  5. Step 5: Solve for x
    x = 564,280,989.86/30,051.30
  6. Step 6: Final answer
    x = 18,777.25

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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.