Home / 33,030.70-49,546.05-21,220.90

Finding the Fourth Proportional to 33,030.70, 49,546.05 and 21,220.90

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Solution

The fourth proportional to 33,030.70, 49,546.05 and 21,220.90 is: 31,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,030.70 : 49,546.05 = 21,220.90 : x
  2. Step 2: Convert to fraction form
    33,030.70/49,546.05 = 21,220.90/x
  3. Step 3: Cross multiply
    33,030.70x = 49,546.05 × 21,220.90
  4. Step 4: Simplify right side
    33,030.70x = 1,051,411,772.45
  5. Step 5: Solve for x
    x = 1,051,411,772.45/33,030.70
  6. Step 6: Final answer
    x = 31,831.35

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Similar ratio
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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.