Home / 22,659.10-31,268.10-12,586.75

Finding the Fourth Proportional to 22,659.10, 31,268.10 and 12,586.75

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Solution

The fourth proportional to 22,659.10, 31,268.10 and 12,586.75 is: 17,368.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.10 : 31,268.10 = 12,586.75 : x
  2. Step 2: Convert to fraction form
    22,659.10/31,268.10 = 12,586.75/x
  3. Step 3: Cross multiply
    22,659.10x = 31,268.10 × 12,586.75
  4. Step 4: Simplify right side
    22,659.10x = 393,563,757.68
  5. Step 5: Solve for x
    x = 393,563,757.68/22,659.10
  6. Step 6: Final answer
    x = 17,368.91

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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.