Home / 28,663.56-42,984.27-11,131.02

Finding the Fourth Proportional to 28,663.56, 42,984.27 and 11,131.02

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Solution

The fourth proportional to 28,663.56, 42,984.27 and 11,131.02 is: 16,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.56 : 42,984.27 = 11,131.02 : x
  2. Step 2: Convert to fraction form
    28,663.56/42,984.27 = 11,131.02/x
  3. Step 3: Cross multiply
    28,663.56x = 42,984.27 × 11,131.02
  4. Step 4: Simplify right side
    28,663.56x = 478,458,769.06
  5. Step 5: Solve for x
    x = 478,458,769.06/28,663.56
  6. Step 6: Final answer
    x = 16,692.23

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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.