Home / 28,410.84-42,630.90-12,626.76

Finding the Fourth Proportional to 28,410.84, 42,630.90 and 12,626.76

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Solution

The fourth proportional to 28,410.84, 42,630.90 and 12,626.76 is: 18,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.84 : 42,630.90 = 12,626.76 : x
  2. Step 2: Convert to fraction form
    28,410.84/42,630.90 = 12,626.76/x
  3. Step 3: Cross multiply
    28,410.84x = 42,630.90 × 12,626.76
  4. Step 4: Simplify right side
    28,410.84x = 538,290,142.88
  5. Step 5: Solve for x
    x = 538,290,142.88/28,410.84
  6. Step 6: Final answer
    x = 18,946.65

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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.