Home / 28,561.22-42,851.96-12,764.80

Finding the Fourth Proportional to 28,561.22, 42,851.96 and 12,764.80

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Solution

The fourth proportional to 28,561.22, 42,851.96 and 12,764.80 is: 19,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.22 : 42,851.96 = 12,764.80 : x
  2. Step 2: Convert to fraction form
    28,561.22/42,851.96 = 12,764.80/x
  3. Step 3: Cross multiply
    28,561.22x = 42,851.96 × 12,764.80
  4. Step 4: Simplify right side
    28,561.22x = 546,996,699.01
  5. Step 5: Solve for x
    x = 546,996,699.01/28,561.22
  6. Step 6: Final answer
    x = 19,151.73

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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.