Home / 22,927.04-31,639.60-12,857.64

Finding the Fourth Proportional to 22,927.04, 31,639.60 and 12,857.64

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Solution

The fourth proportional to 22,927.04, 31,639.60 and 12,857.64 is: 17,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,927.04 : 31,639.60 = 12,857.64 : x
  2. Step 2: Convert to fraction form
    22,927.04/31,639.60 = 12,857.64/x
  3. Step 3: Cross multiply
    22,927.04x = 31,639.60 × 12,857.64
  4. Step 4: Simplify right side
    22,927.04x = 406,810,586.54
  5. Step 5: Solve for x
    x = 406,810,586.54/22,927.04
  6. Step 6: Final answer
    x = 17,743.70

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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.