Home / 22,487.40-31,033.62-12,930.39

Finding the Fourth Proportional to 22,487.40, 31,033.62 and 12,930.39

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Solution

The fourth proportional to 22,487.40, 31,033.62 and 12,930.39 is: 17,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.40 : 31,033.62 = 12,930.39 : x
  2. Step 2: Convert to fraction form
    22,487.40/31,033.62 = 12,930.39/x
  3. Step 3: Cross multiply
    22,487.40x = 31,033.62 × 12,930.39
  4. Step 4: Simplify right side
    22,487.40x = 401,276,809.71
  5. Step 5: Solve for x
    x = 401,276,809.71/22,487.40
  6. Step 6: Final answer
    x = 17,844.52

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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.