Home / 29,409.32-40,589.70-21,477.80

Finding the Fourth Proportional to 29,409.32, 40,589.70 and 21,477.80

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Solution

The fourth proportional to 29,409.32, 40,589.70 and 21,477.80 is: 29,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,409.32 : 40,589.70 = 21,477.80 : x
  2. Step 2: Convert to fraction form
    29,409.32/40,589.70 = 21,477.80/x
  3. Step 3: Cross multiply
    29,409.32x = 40,589.70 × 21,477.80
  4. Step 4: Simplify right side
    29,409.32x = 871,777,458.66
  5. Step 5: Solve for x
    x = 871,777,458.66/29,409.32
  6. Step 6: Final answer
    x = 29,642.90

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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.