Home / 30,870.60-46,329.33-20,337.03

Finding the Fourth Proportional to 30,870.60, 46,329.33 and 20,337.03

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Solution

The fourth proportional to 30,870.60, 46,329.33 and 20,337.03 is: 30,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,870.60 : 46,329.33 = 20,337.03 : x
  2. Step 2: Convert to fraction form
    30,870.60/46,329.33 = 20,337.03/x
  3. Step 3: Cross multiply
    30,870.60x = 46,329.33 × 20,337.03
  4. Step 4: Simplify right side
    30,870.60x = 942,200,974.09
  5. Step 5: Solve for x
    x = 942,200,974.09/30,870.60
  6. Step 6: Final answer
    x = 30,520.98

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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.