Home / 20,147.58-30,223.53-9,751.50

Finding the Fourth Proportional to 20,147.58, 30,223.53 and 9,751.50

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Solution

The fourth proportional to 20,147.58, 30,223.53 and 9,751.50 is: 14,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.58 : 30,223.53 = 9,751.50 : x
  2. Step 2: Convert to fraction form
    20,147.58/30,223.53 = 9,751.50/x
  3. Step 3: Cross multiply
    20,147.58x = 30,223.53 × 9,751.50
  4. Step 4: Simplify right side
    20,147.58x = 294,724,752.80
  5. Step 5: Solve for x
    x = 294,724,752.80/20,147.58
  6. Step 6: Final answer
    x = 14,628.30

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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.