Home / 27,977.27-38,608.64-15,402.02

Finding the Fourth Proportional to 27,977.27, 38,608.64 and 15,402.02

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Solution

The fourth proportional to 27,977.27, 38,608.64 and 15,402.02 is: 21,254.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.27 : 38,608.64 = 15,402.02 : x
  2. Step 2: Convert to fraction form
    27,977.27/38,608.64 = 15,402.02/x
  3. Step 3: Cross multiply
    27,977.27x = 38,608.64 × 15,402.02
  4. Step 4: Simplify right side
    27,977.27x = 594,651,137.26
  5. Step 5: Solve for x
    x = 594,651,137.26/27,977.27
  6. Step 6: Final answer
    x = 21,254.79

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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.