Home / 28,280.30-42,408.30-14,234.90

Finding the Fourth Proportional to 28,280.30, 42,408.30 and 14,234.90

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Solution

The fourth proportional to 28,280.30, 42,408.30 and 14,234.90 is: 21,346.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.30 : 42,408.30 = 14,234.90 : x
  2. Step 2: Convert to fraction form
    28,280.30/42,408.30 = 14,234.90/x
  3. Step 3: Cross multiply
    28,280.30x = 42,408.30 × 14,234.90
  4. Step 4: Simplify right side
    28,280.30x = 603,677,909.67
  5. Step 5: Solve for x
    x = 603,677,909.67/28,280.30
  6. Step 6: Final answer
    x = 21,346.23

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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.