Home / 34,538.99-47,660.20-19,430.36

Finding the Fourth Proportional to 34,538.99, 47,660.20 and 19,430.36

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Solution

The fourth proportional to 34,538.99, 47,660.20 and 19,430.36 is: 26,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,538.99 : 47,660.20 = 19,430.36 : x
  2. Step 2: Convert to fraction form
    34,538.99/47,660.20 = 19,430.36/x
  3. Step 3: Cross multiply
    34,538.99x = 47,660.20 × 19,430.36
  4. Step 4: Simplify right side
    34,538.99x = 926,054,735.52
  5. Step 5: Solve for x
    x = 926,054,735.52/34,538.99
  6. Step 6: Final answer
    x = 26,811.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.