Home / 28,056.36-38,715.48-15,481.08

Finding the Fourth Proportional to 28,056.36, 38,715.48 and 15,481.08

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Solution

The fourth proportional to 28,056.36, 38,715.48 and 15,481.08 is: 21,362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.36 : 38,715.48 = 15,481.08 : x
  2. Step 2: Convert to fraction form
    28,056.36/38,715.48 = 15,481.08/x
  3. Step 3: Cross multiply
    28,056.36x = 38,715.48 × 15,481.08
  4. Step 4: Simplify right side
    28,056.36x = 599,357,443.12
  5. Step 5: Solve for x
    x = 599,357,443.12/28,056.36
  6. Step 6: Final answer
    x = 21,362.62

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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.