Home / 36,136.23-49,870.18-20,220.34

Finding the Fourth Proportional to 36,136.23, 49,870.18 and 20,220.34

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Solution

The fourth proportional to 36,136.23, 49,870.18 and 20,220.34 is: 27,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,136.23 : 49,870.18 = 20,220.34 : x
  2. Step 2: Convert to fraction form
    36,136.23/49,870.18 = 20,220.34/x
  3. Step 3: Cross multiply
    36,136.23x = 49,870.18 × 20,220.34
  4. Step 4: Simplify right side
    36,136.23x = 1,008,391,995.46
  5. Step 5: Solve for x
    x = 1,008,391,995.46/36,136.23
  6. Step 6: Final answer
    x = 27,905.29

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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.