Home / 22,644.05-31,248.64-12,435.21

Finding the Fourth Proportional to 22,644.05, 31,248.64 and 12,435.21

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Solution

The fourth proportional to 22,644.05, 31,248.64 and 12,435.21 is: 17,160.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,644.05 : 31,248.64 = 12,435.21 : x
  2. Step 2: Convert to fraction form
    22,644.05/31,248.64 = 12,435.21/x
  3. Step 3: Cross multiply
    22,644.05x = 31,248.64 × 12,435.21
  4. Step 4: Simplify right side
    22,644.05x = 388,583,416.16
  5. Step 5: Solve for x
    x = 388,583,416.16/22,644.05
  6. Step 6: Final answer
    x = 17,160.51

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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.