Home / 30,479.25-45,718.56-23,128.86

Finding the Fourth Proportional to 30,479.25, 45,718.56 and 23,128.86

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Solution

The fourth proportional to 30,479.25, 45,718.56 and 23,128.86 is: 34,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.25 : 45,718.56 = 23,128.86 : x
  2. Step 2: Convert to fraction form
    30,479.25/45,718.56 = 23,128.86/x
  3. Step 3: Cross multiply
    30,479.25x = 45,718.56 × 23,128.86
  4. Step 4: Simplify right side
    30,479.25x = 1,057,418,173.64
  5. Step 5: Solve for x
    x = 1,057,418,173.64/30,479.25
  6. Step 6: Final answer
    x = 34,693.05

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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.