Home / 38,220.74-52,738.91-21,450.50

Finding the Fourth Proportional to 38,220.74, 52,738.91 and 21,450.50

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Solution

The fourth proportional to 38,220.74, 52,738.91 and 21,450.50 is: 29,598.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,220.74 : 52,738.91 = 21,450.50 : x
  2. Step 2: Convert to fraction form
    38,220.74/52,738.91 = 21,450.50/x
  3. Step 3: Cross multiply
    38,220.74x = 52,738.91 × 21,450.50
  4. Step 4: Simplify right side
    38,220.74x = 1,131,275,988.96
  5. Step 5: Solve for x
    x = 1,131,275,988.96/38,220.74
  6. Step 6: Final answer
    x = 29,598.48

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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.