Home / 20,001.84-30,011.40-11,223.60

Finding the Fourth Proportional to 20,001.84, 30,011.40 and 11,223.60

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Solution

The fourth proportional to 20,001.84, 30,011.40 and 11,223.60 is: 16,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.84 : 30,011.40 = 11,223.60 : x
  2. Step 2: Convert to fraction form
    20,001.84/30,011.40 = 11,223.60/x
  3. Step 3: Cross multiply
    20,001.84x = 30,011.40 × 11,223.60
  4. Step 4: Simplify right side
    20,001.84x = 336,835,949.04
  5. Step 5: Solve for x
    x = 336,835,949.04/20,001.84
  6. Step 6: Final answer
    x = 16,840.25

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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.