Home / 28,608.16-42,853.44-13,773.28

Finding the Fourth Proportional to 28,608.16, 42,853.44 and 13,773.28

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Solution

The fourth proportional to 28,608.16, 42,853.44 and 13,773.28 is: 20,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.16 : 42,853.44 = 13,773.28 : x
  2. Step 2: Convert to fraction form
    28,608.16/42,853.44 = 13,773.28/x
  3. Step 3: Cross multiply
    28,608.16x = 42,853.44 × 13,773.28
  4. Step 4: Simplify right side
    28,608.16x = 590,232,428.08
  5. Step 5: Solve for x
    x = 590,232,428.08/28,608.16
  6. Step 6: Final answer
    x = 20,631.61

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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.