Home / 38,156.70-52,657.94-21,159.80

Finding the Fourth Proportional to 38,156.70, 52,657.94 and 21,159.80

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Solution

The fourth proportional to 38,156.70, 52,657.94 and 21,159.80 is: 29,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,156.70 : 52,657.94 = 21,159.80 : x
  2. Step 2: Convert to fraction form
    38,156.70/52,657.94 = 21,159.80/x
  3. Step 3: Cross multiply
    38,156.70x = 52,657.94 × 21,159.80
  4. Step 4: Simplify right side
    38,156.70x = 1,114,231,109.72
  5. Step 5: Solve for x
    x = 1,114,231,109.72/38,156.70
  6. Step 6: Final answer
    x = 29,201.45

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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.