Home / 30,443.18-45,633.78-20,583.45

Finding the Fourth Proportional to 30,443.18, 45,633.78 and 20,583.45

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Solution

The fourth proportional to 30,443.18, 45,633.78 and 20,583.45 is: 30,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.18 : 45,633.78 = 20,583.45 : x
  2. Step 2: Convert to fraction form
    30,443.18/45,633.78 = 20,583.45/x
  3. Step 3: Cross multiply
    30,443.18x = 45,633.78 × 20,583.45
  4. Step 4: Simplify right side
    30,443.18x = 939,300,628.94
  5. Step 5: Solve for x
    x = 939,300,628.94/30,443.18
  6. Step 6: Final answer
    x = 30,854.23

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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.