Home / 30,567.09-45,850.79-13,915.47

Finding the Fourth Proportional to 30,567.09, 45,850.79 and 13,915.47

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Solution

The fourth proportional to 30,567.09, 45,850.79 and 13,915.47 is: 20,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.09 : 45,850.79 = 13,915.47 : x
  2. Step 2: Convert to fraction form
    30,567.09/45,850.79 = 13,915.47/x
  3. Step 3: Cross multiply
    30,567.09x = 45,850.79 × 13,915.47
  4. Step 4: Simplify right side
    30,567.09x = 638,035,292.72
  5. Step 5: Solve for x
    x = 638,035,292.72/30,567.09
  6. Step 6: Final answer
    x = 20,873.28

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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.