Home / 22,659.32-31,268.80-12,588.40

Finding the Fourth Proportional to 22,659.32, 31,268.80 and 12,588.40

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Solution

The fourth proportional to 22,659.32, 31,268.80 and 12,588.40 is: 17,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.32 : 31,268.80 = 12,588.40 : x
  2. Step 2: Convert to fraction form
    22,659.32/31,268.80 = 12,588.40/x
  3. Step 3: Cross multiply
    22,659.32x = 31,268.80 × 12,588.40
  4. Step 4: Simplify right side
    22,659.32x = 393,624,161.92
  5. Step 5: Solve for x
    x = 393,624,161.92/22,659.32
  6. Step 6: Final answer
    x = 17,371.40

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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.