Home / 28,053.56-38,714.73-15,479.12

Finding the Fourth Proportional to 28,053.56, 38,714.73 and 15,479.12

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Solution

The fourth proportional to 28,053.56, 38,714.73 and 15,479.12 is: 21,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.56 : 38,714.73 = 15,479.12 : x
  2. Step 2: Convert to fraction form
    28,053.56/38,714.73 = 15,479.12/x
  3. Step 3: Cross multiply
    28,053.56x = 38,714.73 × 15,479.12
  4. Step 4: Simplify right side
    28,053.56x = 599,269,990.18
  5. Step 5: Solve for x
    x = 599,269,990.18/28,053.56
  6. Step 6: Final answer
    x = 21,361.64

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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.