Home / 30,376.18-45,606.24-20,993.08

Finding the Fourth Proportional to 30,376.18, 45,606.24 and 20,993.08

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Solution

The fourth proportional to 30,376.18, 45,606.24 and 20,993.08 is: 31,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.18 : 45,606.24 = 20,993.08 : x
  2. Step 2: Convert to fraction form
    30,376.18/45,606.24 = 20,993.08/x
  3. Step 3: Cross multiply
    30,376.18x = 45,606.24 × 20,993.08
  4. Step 4: Simplify right side
    30,376.18x = 957,415,444.82
  5. Step 5: Solve for x
    x = 957,415,444.82/30,376.18
  6. Step 6: Final answer
    x = 31,518.63

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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.