Home / 22,628.16-31,232.80-12,695.36

Finding the Fourth Proportional to 22,628.16, 31,232.80 and 12,695.36

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Solution

The fourth proportional to 22,628.16, 31,232.80 and 12,695.36 is: 17,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.16 : 31,232.80 = 12,695.36 : x
  2. Step 2: Convert to fraction form
    22,628.16/31,232.80 = 12,695.36/x
  3. Step 3: Cross multiply
    22,628.16x = 31,232.80 × 12,695.36
  4. Step 4: Simplify right side
    22,628.16x = 396,511,639.81
  5. Step 5: Solve for x
    x = 396,511,639.81/22,628.16
  6. Step 6: Final answer
    x = 17,522.93

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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.