Home / 28,089.30-38,731.74-22,968.90

Finding the Fourth Proportional to 28,089.30, 38,731.74 and 22,968.90

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Solution

The fourth proportional to 28,089.30, 38,731.74 and 22,968.90 is: 31,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.30 : 38,731.74 = 22,968.90 : x
  2. Step 2: Convert to fraction form
    28,089.30/38,731.74 = 22,968.90/x
  3. Step 3: Cross multiply
    28,089.30x = 38,731.74 × 22,968.90
  4. Step 4: Simplify right side
    28,089.30x = 889,625,462.89
  5. Step 5: Solve for x
    x = 889,625,462.89/28,089.30
  6. Step 6: Final answer
    x = 31,671.33

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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.