Home / 23,027.49-31,775.67-12,955.68

Finding the Fourth Proportional to 23,027.49, 31,775.67 and 12,955.68

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Solution

The fourth proportional to 23,027.49, 31,775.67 and 12,955.68 is: 17,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,027.49 : 31,775.67 = 12,955.68 : x
  2. Step 2: Convert to fraction form
    23,027.49/31,775.67 = 12,955.68/x
  3. Step 3: Cross multiply
    23,027.49x = 31,775.67 × 12,955.68
  4. Step 4: Simplify right side
    23,027.49x = 411,675,412.31
  5. Step 5: Solve for x
    x = 411,675,412.31/23,027.49
  6. Step 6: Final answer
    x = 17,877.56

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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.