Home / 15,174.72-20,984.88-14,478.48

Finding the Fourth Proportional to 15,174.72, 20,984.88 and 14,478.48

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Solution

The fourth proportional to 15,174.72, 20,984.88 and 14,478.48 is: 20,022.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.72 : 20,984.88 = 14,478.48 : x
  2. Step 2: Convert to fraction form
    15,174.72/20,984.88 = 14,478.48/x
  3. Step 3: Cross multiply
    15,174.72x = 20,984.88 × 14,478.48
  4. Step 4: Simplify right side
    15,174.72x = 303,829,165.38
  5. Step 5: Solve for x
    x = 303,829,165.38/15,174.72
  6. Step 6: Final answer
    x = 20,022.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.