Home / 28,556.20-42,834.30-18,533.80

Finding the Fourth Proportional to 28,556.20, 42,834.30 and 18,533.80

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Solution

The fourth proportional to 28,556.20, 42,834.30 and 18,533.80 is: 27,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.20 : 42,834.30 = 18,533.80 : x
  2. Step 2: Convert to fraction form
    28,556.20/42,834.30 = 18,533.80/x
  3. Step 3: Cross multiply
    28,556.20x = 42,834.30 × 18,533.80
  4. Step 4: Simplify right side
    28,556.20x = 793,882,349.34
  5. Step 5: Solve for x
    x = 793,882,349.34/28,556.20
  6. Step 6: Final answer
    x = 27,800.70

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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.