Home / 15,803.28-21,810.62-15,284.04

Finding the Fourth Proportional to 15,803.28, 21,810.62 and 15,284.04

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Solution

The fourth proportional to 15,803.28, 21,810.62 and 15,284.04 is: 21,094.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.28 : 21,810.62 = 15,284.04 : x
  2. Step 2: Convert to fraction form
    15,803.28/21,810.62 = 15,284.04/x
  3. Step 3: Cross multiply
    15,803.28x = 21,810.62 × 15,284.04
  4. Step 4: Simplify right side
    15,803.28x = 333,354,388.50
  5. Step 5: Solve for x
    x = 333,354,388.50/15,803.28
  6. Step 6: Final answer
    x = 21,094.00

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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.