Home / 23,060.25-31,781.25-15,890.58

Finding the Fourth Proportional to 23,060.25, 31,781.25 and 15,890.58

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Solution

The fourth proportional to 23,060.25, 31,781.25 and 15,890.58 is: 21,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,060.25 : 31,781.25 = 15,890.58 : x
  2. Step 2: Convert to fraction form
    23,060.25/31,781.25 = 15,890.58/x
  3. Step 3: Cross multiply
    23,060.25x = 31,781.25 × 15,890.58
  4. Step 4: Simplify right side
    23,060.25x = 505,022,495.63
  5. Step 5: Solve for x
    x = 505,022,495.63/23,060.25
  6. Step 6: Final answer
    x = 21,900.13

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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.