Home / 28,531.44-42,768.39-11,900.67

Finding the Fourth Proportional to 28,531.44, 42,768.39 and 11,900.67

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Solution

The fourth proportional to 28,531.44, 42,768.39 and 11,900.67 is: 17,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.44 : 42,768.39 = 11,900.67 : x
  2. Step 2: Convert to fraction form
    28,531.44/42,768.39 = 11,900.67/x
  3. Step 3: Cross multiply
    28,531.44x = 42,768.39 × 11,900.67
  4. Step 4: Simplify right side
    28,531.44x = 508,972,495.82
  5. Step 5: Solve for x
    x = 508,972,495.82/28,531.44
  6. Step 6: Final answer
    x = 17,839.00

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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.