Home / 31,789.16-43,869.30-17,643.32

Finding the Fourth Proportional to 31,789.16, 43,869.30 and 17,643.32

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Solution

The fourth proportional to 31,789.16, 43,869.30 and 17,643.32 is: 24,347.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789.16 : 43,869.30 = 17,643.32 : x
  2. Step 2: Convert to fraction form
    31,789.16/43,869.30 = 17,643.32/x
  3. Step 3: Cross multiply
    31,789.16x = 43,869.30 × 17,643.32
  4. Step 4: Simplify right side
    31,789.16x = 774,000,098.08
  5. Step 5: Solve for x
    x = 774,000,098.08/31,789.16
  6. Step 6: Final answer
    x = 24,347.93

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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.