Home / 28,560.96-42,851.70-12,764.68

Finding the Fourth Proportional to 28,560.96, 42,851.70 and 12,764.68

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Solution

The fourth proportional to 28,560.96, 42,851.70 and 12,764.68 is: 19,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.96 : 42,851.70 = 12,764.68 : x
  2. Step 2: Convert to fraction form
    28,560.96/42,851.70 = 12,764.68/x
  3. Step 3: Cross multiply
    28,560.96x = 42,851.70 × 12,764.68
  4. Step 4: Simplify right side
    28,560.96x = 546,988,237.96
  5. Step 5: Solve for x
    x = 546,988,237.96/28,560.96
  6. Step 6: Final answer
    x = 19,151.61

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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.