Home / 25,983.99-38,878.47-15,415.31

Finding the Fourth Proportional to 25,983.99, 38,878.47 and 15,415.31

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Solution

The fourth proportional to 25,983.99, 38,878.47 and 15,415.31 is: 23,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.99 : 38,878.47 = 15,415.31 : x
  2. Step 2: Convert to fraction form
    25,983.99/38,878.47 = 15,415.31/x
  3. Step 3: Cross multiply
    25,983.99x = 38,878.47 × 15,415.31
  4. Step 4: Simplify right side
    25,983.99x = 599,323,667.38
  5. Step 5: Solve for x
    x = 599,323,667.38/25,983.99
  6. Step 6: Final answer
    x = 23,065.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.