Home / 27,548.31-38,015.89-15,615.50

Finding the Fourth Proportional to 27,548.31, 38,015.89 and 15,615.50

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Solution

The fourth proportional to 27,548.31, 38,015.89 and 15,615.50 is: 21,548.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,548.31 : 38,015.89 = 15,615.50 : x
  2. Step 2: Convert to fraction form
    27,548.31/38,015.89 = 15,615.50/x
  3. Step 3: Cross multiply
    27,548.31x = 38,015.89 × 15,615.50
  4. Step 4: Simplify right side
    27,548.31x = 593,636,901.18
  5. Step 5: Solve for x
    x = 593,636,901.18/27,548.31
  6. Step 6: Final answer
    x = 21,548.94

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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.