Home / 30,587.29-45,872.12-8,401.39

Finding the Fourth Proportional to 30,587.29, 45,872.12 and 8,401.39

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Solution

The fourth proportional to 30,587.29, 45,872.12 and 8,401.39 is: 12,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.29 : 45,872.12 = 8,401.39 : x
  2. Step 2: Convert to fraction form
    30,587.29/45,872.12 = 8,401.39/x
  3. Step 3: Cross multiply
    30,587.29x = 45,872.12 × 8,401.39
  4. Step 4: Simplify right side
    30,587.29x = 385,389,648.59
  5. Step 5: Solve for x
    x = 385,389,648.59/30,587.29
  6. Step 6: Final answer
    x = 12,599.67

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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.