Home / 20,897.19-28,837.22-11,465.96

Finding the Fourth Proportional to 20,897.19, 28,837.22 and 11,465.96

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Solution

The fourth proportional to 20,897.19, 28,837.22 and 11,465.96 is: 15,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.19 : 28,837.22 = 11,465.96 : x
  2. Step 2: Convert to fraction form
    20,897.19/28,837.22 = 11,465.96/x
  3. Step 3: Cross multiply
    20,897.19x = 28,837.22 × 11,465.96
  4. Step 4: Simplify right side
    20,897.19x = 330,646,209.52
  5. Step 5: Solve for x
    x = 330,646,209.52/20,897.19
  6. Step 6: Final answer
    x = 15,822.52

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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.