Home / 28,051.62-38,710.44-15,305.04

Finding the Fourth Proportional to 28,051.62, 38,710.44 and 15,305.04

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Solution

The fourth proportional to 28,051.62, 38,710.44 and 15,305.04 is: 21,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.62 : 38,710.44 = 15,305.04 : x
  2. Step 2: Convert to fraction form
    28,051.62/38,710.44 = 15,305.04/x
  3. Step 3: Cross multiply
    28,051.62x = 38,710.44 × 15,305.04
  4. Step 4: Simplify right side
    28,051.62x = 592,464,832.62
  5. Step 5: Solve for x
    x = 592,464,832.62/28,051.62
  6. Step 6: Final answer
    x = 21,120.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.