Home / 31,430.40-43,372.83-17,283.12

Finding the Fourth Proportional to 31,430.40, 43,372.83 and 17,283.12

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Solution

The fourth proportional to 31,430.40, 43,372.83 and 17,283.12 is: 23,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.40 : 43,372.83 = 17,283.12 : x
  2. Step 2: Convert to fraction form
    31,430.40/43,372.83 = 17,283.12/x
  3. Step 3: Cross multiply
    31,430.40x = 43,372.83 × 17,283.12
  4. Step 4: Simplify right side
    31,430.40x = 749,617,825.63
  5. Step 5: Solve for x
    x = 749,617,825.63/31,430.40
  6. Step 6: Final answer
    x = 23,850.09

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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.