Home / 31,529.12-43,510.16-17,382.20

Finding the Fourth Proportional to 31,529.12, 43,510.16 and 17,382.20

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Solution

The fourth proportional to 31,529.12, 43,510.16 and 17,382.20 is: 23,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,529.12 : 43,510.16 = 17,382.20 : x
  2. Step 2: Convert to fraction form
    31,529.12/43,510.16 = 17,382.20/x
  3. Step 3: Cross multiply
    31,529.12x = 43,510.16 × 17,382.20
  4. Step 4: Simplify right side
    31,529.12x = 756,302,303.15
  5. Step 5: Solve for x
    x = 756,302,303.15/31,529.12
  6. Step 6: Final answer
    x = 23,987.42

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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.