Home / 28,040.34-38,693.39-15,465.09

Finding the Fourth Proportional to 28,040.34, 38,693.39 and 15,465.09

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Solution

The fourth proportional to 28,040.34, 38,693.39 and 15,465.09 is: 21,340.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.34 : 38,693.39 = 15,465.09 : x
  2. Step 2: Convert to fraction form
    28,040.34/38,693.39 = 15,465.09/x
  3. Step 3: Cross multiply
    28,040.34x = 38,693.39 × 15,465.09
  4. Step 4: Simplify right side
    28,040.34x = 598,396,681.43
  5. Step 5: Solve for x
    x = 598,396,681.43/28,040.34
  6. Step 6: Final answer
    x = 21,340.56

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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.