Home / 28,463.41-42,694.20-12,881.03

Finding the Fourth Proportional to 28,463.41, 42,694.20 and 12,881.03

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Solution

The fourth proportional to 28,463.41, 42,694.20 and 12,881.03 is: 19,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.41 : 42,694.20 = 12,881.03 : x
  2. Step 2: Convert to fraction form
    28,463.41/42,694.20 = 12,881.03/x
  3. Step 3: Cross multiply
    28,463.41x = 42,694.20 × 12,881.03
  4. Step 4: Simplify right side
    28,463.41x = 549,945,377.76
  5. Step 5: Solve for x
    x = 549,945,377.76/28,463.41
  6. Step 6: Final answer
    x = 19,321.14

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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.