Home / 30,020.10-41,427.86-16,408.41

Finding the Fourth Proportional to 30,020.10, 41,427.86 and 16,408.41

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Solution

The fourth proportional to 30,020.10, 41,427.86 and 16,408.41 is: 22,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.10 : 41,427.86 = 16,408.41 : x
  2. Step 2: Convert to fraction form
    30,020.10/41,427.86 = 16,408.41/x
  3. Step 3: Cross multiply
    30,020.10x = 41,427.86 × 16,408.41
  4. Step 4: Simplify right side
    30,020.10x = 679,765,312.30
  5. Step 5: Solve for x
    x = 679,765,312.30/30,020.10
  6. Step 6: Final answer
    x = 22,643.67

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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.