Home / 28,416.89-42,625.55-12,617.67

Finding the Fourth Proportional to 28,416.89, 42,625.55 and 12,617.67

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Solution

The fourth proportional to 28,416.89, 42,625.55 and 12,617.67 is: 18,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.89 : 42,625.55 = 12,617.67 : x
  2. Step 2: Convert to fraction form
    28,416.89/42,625.55 = 12,617.67/x
  3. Step 3: Cross multiply
    28,416.89x = 42,625.55 × 12,617.67
  4. Step 4: Simplify right side
    28,416.89x = 537,834,847.25
  5. Step 5: Solve for x
    x = 537,834,847.25/28,416.89
  6. Step 6: Final answer
    x = 18,926.59

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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.