Home / 31,865.64-43,974-17,718.36

Finding the Fourth Proportional to 31,865.64, 43,974 and 17,718.36

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Solution

The fourth proportional to 31,865.64, 43,974 and 17,718.36 is: 24,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.64 : 43,974 = 17,718.36 : x
  2. Step 2: Convert to fraction form
    31,865.64/43,974 = 17,718.36/x
  3. Step 3: Cross multiply
    31,865.64x = 43,974 × 17,718.36
  4. Step 4: Simplify right side
    31,865.64x = 779,147,162.64
  5. Step 5: Solve for x
    x = 779,147,162.64/31,865.64
  6. Step 6: Final answer
    x = 24,451.01

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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.