Home / 38,133.76-52,623.66-21,137.70

Finding the Fourth Proportional to 38,133.76, 52,623.66 and 21,137.70

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Solution

The fourth proportional to 38,133.76, 52,623.66 and 21,137.70 is: 29,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,133.76 : 52,623.66 = 21,137.70 : x
  2. Step 2: Convert to fraction form
    38,133.76/52,623.66 = 21,137.70/x
  3. Step 3: Cross multiply
    38,133.76x = 52,623.66 × 21,137.70
  4. Step 4: Simplify right side
    38,133.76x = 1,112,343,014.85
  5. Step 5: Solve for x
    x = 1,112,343,014.85/38,133.76
  6. Step 6: Final answer
    x = 29,169.51

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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.