Home / 27,685.76-38,206.31-15,110.51

Finding the Fourth Proportional to 27,685.76, 38,206.31 and 15,110.51

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Solution

The fourth proportional to 27,685.76, 38,206.31 and 15,110.51 is: 20,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,685.76 : 38,206.31 = 15,110.51 : x
  2. Step 2: Convert to fraction form
    27,685.76/38,206.31 = 15,110.51/x
  3. Step 3: Cross multiply
    27,685.76x = 38,206.31 × 15,110.51
  4. Step 4: Simplify right side
    27,685.76x = 577,316,562.73
  5. Step 5: Solve for x
    x = 577,316,562.73/27,685.76
  6. Step 6: Final answer
    x = 20,852.48

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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.