Home / 28,559.96-42,850.20-12,763.68

Finding the Fourth Proportional to 28,559.96, 42,850.20 and 12,763.68

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Solution

The fourth proportional to 28,559.96, 42,850.20 and 12,763.68 is: 19,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.96 : 42,850.20 = 12,763.68 : x
  2. Step 2: Convert to fraction form
    28,559.96/42,850.20 = 12,763.68/x
  3. Step 3: Cross multiply
    28,559.96x = 42,850.20 × 12,763.68
  4. Step 4: Simplify right side
    28,559.96x = 546,926,056.12
  5. Step 5: Solve for x
    x = 546,926,056.12/28,559.96
  6. Step 6: Final answer
    x = 19,150.10

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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.