Home / 20,348.40-30,518.49-5,556.08

Finding the Fourth Proportional to 20,348.40, 30,518.49 and 5,556.08

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Solution

The fourth proportional to 20,348.40, 30,518.49 and 5,556.08 is: 8,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.40 : 30,518.49 = 5,556.08 : x
  2. Step 2: Convert to fraction form
    20,348.40/30,518.49 = 5,556.08/x
  3. Step 3: Cross multiply
    20,348.40x = 30,518.49 × 5,556.08
  4. Step 4: Simplify right side
    20,348.40x = 169,563,171.92
  5. Step 5: Solve for x
    x = 169,563,171.92/20,348.40
  6. Step 6: Final answer
    x = 8,333.00

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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.