Home / 20,275.38-27,985.41-11,897.46

Finding the Fourth Proportional to 20,275.38, 27,985.41 and 11,897.46

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Solution

The fourth proportional to 20,275.38, 27,985.41 and 11,897.46 is: 16,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.38 : 27,985.41 = 11,897.46 : x
  2. Step 2: Convert to fraction form
    20,275.38/27,985.41 = 11,897.46/x
  3. Step 3: Cross multiply
    20,275.38x = 27,985.41 × 11,897.46
  4. Step 4: Simplify right side
    20,275.38x = 332,955,296.06
  5. Step 5: Solve for x
    x = 332,955,296.06/20,275.38
  6. Step 6: Final answer
    x = 16,421.66

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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.