Home / 28,628.59-39,507.56-15,882.03

Finding the Fourth Proportional to 28,628.59, 39,507.56 and 15,882.03

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Solution

The fourth proportional to 28,628.59, 39,507.56 and 15,882.03 is: 21,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.59 : 39,507.56 = 15,882.03 : x
  2. Step 2: Convert to fraction form
    28,628.59/39,507.56 = 15,882.03/x
  3. Step 3: Cross multiply
    28,628.59x = 39,507.56 × 15,882.03
  4. Step 4: Simplify right side
    28,628.59x = 627,460,159.22
  5. Step 5: Solve for x
    x = 627,460,159.22/28,628.59
  6. Step 6: Final answer
    x = 21,917.25

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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.