Home / 30,204.72-45,300.24-12,669.84

Finding the Fourth Proportional to 30,204.72, 45,300.24 and 12,669.84

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Solution

The fourth proportional to 30,204.72, 45,300.24 and 12,669.84 is: 19,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.72 : 45,300.24 = 12,669.84 : x
  2. Step 2: Convert to fraction form
    30,204.72/45,300.24 = 12,669.84/x
  3. Step 3: Cross multiply
    30,204.72x = 45,300.24 × 12,669.84
  4. Step 4: Simplify right side
    30,204.72x = 573,946,792.76
  5. Step 5: Solve for x
    x = 573,946,792.76/30,204.72
  6. Step 6: Final answer
    x = 19,001.89

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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.