Home / 31,128.60-46,644.30-26,171.40

Finding the Fourth Proportional to 31,128.60, 46,644.30 and 26,171.40

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Solution

The fourth proportional to 31,128.60, 46,644.30 and 26,171.40 is: 39,216.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,128.60 : 46,644.30 = 26,171.40 : x
  2. Step 2: Convert to fraction form
    31,128.60/46,644.30 = 26,171.40/x
  3. Step 3: Cross multiply
    31,128.60x = 46,644.30 × 26,171.40
  4. Step 4: Simplify right side
    31,128.60x = 1,220,746,633.02
  5. Step 5: Solve for x
    x = 1,220,746,633.02/31,128.60
  6. Step 6: Final answer
    x = 39,216.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.