Home / 30,442.51-45,729.78-25,772.05

Finding the Fourth Proportional to 30,442.51, 45,729.78 and 25,772.05

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Solution

The fourth proportional to 30,442.51, 45,729.78 and 25,772.05 is: 38,713.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,442.51 : 45,729.78 = 25,772.05 : x
  2. Step 2: Convert to fraction form
    30,442.51/45,729.78 = 25,772.05/x
  3. Step 3: Cross multiply
    30,442.51x = 45,729.78 × 25,772.05
  4. Step 4: Simplify right side
    30,442.51x = 1,178,550,176.65
  5. Step 5: Solve for x
    x = 1,178,550,176.65/30,442.51
  6. Step 6: Final answer
    x = 38,713.96

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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.