Home / 30,450.06-45,641.16-12,670.92

Finding the Fourth Proportional to 30,450.06, 45,641.16 and 12,670.92

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Solution

The fourth proportional to 30,450.06, 45,641.16 and 12,670.92 is: 18,992.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.06 : 45,641.16 = 12,670.92 : x
  2. Step 2: Convert to fraction form
    30,450.06/45,641.16 = 12,670.92/x
  3. Step 3: Cross multiply
    30,450.06x = 45,641.16 × 12,670.92
  4. Step 4: Simplify right side
    30,450.06x = 578,315,487.07
  5. Step 5: Solve for x
    x = 578,315,487.07/30,450.06
  6. Step 6: Final answer
    x = 18,992.26

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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.