Home / 31,529.72-43,510.20-17,382.32

Finding the Fourth Proportional to 31,529.72, 43,510.20 and 17,382.32

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Solution

The fourth proportional to 31,529.72, 43,510.20 and 17,382.32 is: 23,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.72 : 43,510.20 = 17,382.32 : x
  2. Step 2: Convert to fraction form
    31,529.72/43,510.20 = 17,382.32/x
  3. Step 3: Cross multiply
    31,529.72x = 43,510.20 × 17,382.32
  4. Step 4: Simplify right side
    31,529.72x = 756,308,219.66
  5. Step 5: Solve for x
    x = 756,308,219.66/31,529.72
  6. Step 6: Final answer
    x = 23,987.15

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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.