Home / 20,898.99-31,348.08-5,104.13

Finding the Fourth Proportional to 20,898.99, 31,348.08 and 5,104.13

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Solution

The fourth proportional to 20,898.99, 31,348.08 and 5,104.13 is: 7,656.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.99 : 31,348.08 = 5,104.13 : x
  2. Step 2: Convert to fraction form
    20,898.99/31,348.08 = 5,104.13/x
  3. Step 3: Cross multiply
    20,898.99x = 31,348.08 × 5,104.13
  4. Step 4: Simplify right side
    20,898.99x = 160,004,518.83
  5. Step 5: Solve for x
    x = 160,004,518.83/20,898.99
  6. Step 6: Final answer
    x = 7,656.09

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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.