Home / 27,686.07-38,206.80-15,110.82

Finding the Fourth Proportional to 27,686.07, 38,206.80 and 15,110.82

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Solution

The fourth proportional to 27,686.07, 38,206.80 and 15,110.82 is: 20,852.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,686.07 : 38,206.80 = 15,110.82 : x
  2. Step 2: Convert to fraction form
    27,686.07/38,206.80 = 15,110.82/x
  3. Step 3: Cross multiply
    27,686.07x = 38,206.80 × 15,110.82
  4. Step 4: Simplify right side
    27,686.07x = 577,336,077.58
  5. Step 5: Solve for x
    x = 577,336,077.58/27,686.07
  6. Step 6: Final answer
    x = 20,852.94

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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.