Home / 21,052.39-29,051.88-12,099.67

Finding the Fourth Proportional to 21,052.39, 29,051.88 and 12,099.67

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Solution

The fourth proportional to 21,052.39, 29,051.88 and 12,099.67 is: 16,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.39 : 29,051.88 = 12,099.67 : x
  2. Step 2: Convert to fraction form
    21,052.39/29,051.88 = 12,099.67/x
  3. Step 3: Cross multiply
    21,052.39x = 29,051.88 × 12,099.67
  4. Step 4: Simplify right side
    21,052.39x = 351,518,160.88
  5. Step 5: Solve for x
    x = 351,518,160.88/21,052.39
  6. Step 6: Final answer
    x = 16,697.30

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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.