Home / 20,242.98-30,363.84-11,478.24

Finding the Fourth Proportional to 20,242.98, 30,363.84 and 11,478.24

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Solution

The fourth proportional to 20,242.98, 30,363.84 and 11,478.24 is: 17,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.98 : 30,363.84 = 11,478.24 : x
  2. Step 2: Convert to fraction form
    20,242.98/30,363.84 = 11,478.24/x
  3. Step 3: Cross multiply
    20,242.98x = 30,363.84 × 11,478.24
  4. Step 4: Simplify right side
    20,242.98x = 348,523,442.84
  5. Step 5: Solve for x
    x = 348,523,442.84/20,242.98
  6. Step 6: Final answer
    x = 17,217.00

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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.