Home / 30,289.36-45,404.88-18,605.92

Finding the Fourth Proportional to 30,289.36, 45,404.88 and 18,605.92

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Solution

The fourth proportional to 30,289.36, 45,404.88 and 18,605.92 is: 27,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.36 : 45,404.88 = 18,605.92 : x
  2. Step 2: Convert to fraction form
    30,289.36/45,404.88 = 18,605.92/x
  3. Step 3: Cross multiply
    30,289.36x = 45,404.88 × 18,605.92
  4. Step 4: Simplify right side
    30,289.36x = 844,799,564.89
  5. Step 5: Solve for x
    x = 844,799,564.89/30,289.36
  6. Step 6: Final answer
    x = 27,890.97

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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.