Home / 31,283.10-43,171.56-19,018.49

Finding the Fourth Proportional to 31,283.10, 43,171.56 and 19,018.49

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Solution

The fourth proportional to 31,283.10, 43,171.56 and 19,018.49 is: 26,246.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,283.10 : 43,171.56 = 19,018.49 : x
  2. Step 2: Convert to fraction form
    31,283.10/43,171.56 = 19,018.49/x
  3. Step 3: Cross multiply
    31,283.10x = 43,171.56 × 19,018.49
  4. Step 4: Simplify right side
    31,283.10x = 821,057,828.18
  5. Step 5: Solve for x
    x = 821,057,828.18/31,283.10
  6. Step 6: Final answer
    x = 26,246.05

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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.