Home / 28,273.48-39,017.64-15,699.04

Finding the Fourth Proportional to 28,273.48, 39,017.64 and 15,699.04

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Solution

The fourth proportional to 28,273.48, 39,017.64 and 15,699.04 is: 21,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.48 : 39,017.64 = 15,699.04 : x
  2. Step 2: Convert to fraction form
    28,273.48/39,017.64 = 15,699.04/x
  3. Step 3: Cross multiply
    28,273.48x = 39,017.64 × 15,699.04
  4. Step 4: Simplify right side
    28,273.48x = 612,539,491.07
  5. Step 5: Solve for x
    x = 612,539,491.07/28,273.48
  6. Step 6: Final answer
    x = 21,664.81

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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.