Home / 25,439.01-38,162.60-7,905.21

Finding the Fourth Proportional to 25,439.01, 38,162.60 and 7,905.21

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Solution

The fourth proportional to 25,439.01, 38,162.60 and 7,905.21 is: 11,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.01 : 38,162.60 = 7,905.21 : x
  2. Step 2: Convert to fraction form
    25,439.01/38,162.60 = 7,905.21/x
  3. Step 3: Cross multiply
    25,439.01x = 38,162.60 × 7,905.21
  4. Step 4: Simplify right side
    25,439.01x = 301,683,327.62
  5. Step 5: Solve for x
    x = 301,683,327.62/25,439.01
  6. Step 6: Final answer
    x = 11,859.08

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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.