Home / 27,688.42-38,206.45-15,587.37

Finding the Fourth Proportional to 27,688.42, 38,206.45 and 15,587.37

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Solution

The fourth proportional to 27,688.42, 38,206.45 and 15,587.37 is: 21,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,688.42 : 38,206.45 = 15,587.37 : x
  2. Step 2: Convert to fraction form
    27,688.42/38,206.45 = 15,587.37/x
  3. Step 3: Cross multiply
    27,688.42x = 38,206.45 × 15,587.37
  4. Step 4: Simplify right side
    27,688.42x = 595,538,072.54
  5. Step 5: Solve for x
    x = 595,538,072.54/27,688.42
  6. Step 6: Final answer
    x = 21,508.56

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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.