Home / 27,977.59-38,606.79-15,402.34

Finding the Fourth Proportional to 27,977.59, 38,606.79 and 15,402.34

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Solution

The fourth proportional to 27,977.59, 38,606.79 and 15,402.34 is: 21,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.59 : 38,606.79 = 15,402.34 : x
  2. Step 2: Convert to fraction form
    27,977.59/38,606.79 = 15,402.34/x
  3. Step 3: Cross multiply
    27,977.59x = 38,606.79 × 15,402.34
  4. Step 4: Simplify right side
    27,977.59x = 594,634,905.89
  5. Step 5: Solve for x
    x = 594,634,905.89/27,977.59
  6. Step 6: Final answer
    x = 21,253.97

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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.