Home / 28,017.96-38,720.52-22,974.36

Finding the Fourth Proportional to 28,017.96, 38,720.52 and 22,974.36

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Solution

The fourth proportional to 28,017.96, 38,720.52 and 22,974.36 is: 31,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.96 : 38,720.52 = 22,974.36 : x
  2. Step 2: Convert to fraction form
    28,017.96/38,720.52 = 22,974.36/x
  3. Step 3: Cross multiply
    28,017.96x = 38,720.52 × 22,974.36
  4. Step 4: Simplify right side
    28,017.96x = 889,579,165.87
  5. Step 5: Solve for x
    x = 889,579,165.87/28,017.96
  6. Step 6: Final answer
    x = 31,750.32

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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.