Home / 25,630.05-38,431.40-13,145.01

Finding the Fourth Proportional to 25,630.05, 38,431.40 and 13,145.01

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Solution

The fourth proportional to 25,630.05, 38,431.40 and 13,145.01 is: 19,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,630.05 : 38,431.40 = 13,145.01 : x
  2. Step 2: Convert to fraction form
    25,630.05/38,431.40 = 13,145.01/x
  3. Step 3: Cross multiply
    25,630.05x = 38,431.40 × 13,145.01
  4. Step 4: Simplify right side
    25,630.05x = 505,181,137.31
  5. Step 5: Solve for x
    x = 505,181,137.31/25,630.05
  6. Step 6: Final answer
    x = 19,710.50

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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.