Home / 29,285.62-40,395.98-21,621.06

Finding the Fourth Proportional to 29,285.62, 40,395.98 and 21,621.06

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Solution

The fourth proportional to 29,285.62, 40,395.98 and 21,621.06 is: 29,823.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,285.62 : 40,395.98 = 21,621.06 : x
  2. Step 2: Convert to fraction form
    29,285.62/40,395.98 = 21,621.06/x
  3. Step 3: Cross multiply
    29,285.62x = 40,395.98 × 21,621.06
  4. Step 4: Simplify right side
    29,285.62x = 873,403,961.39
  5. Step 5: Solve for x
    x = 873,403,961.39/29,285.62
  6. Step 6: Final answer
    x = 29,823.65

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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.