Home / 26,043.52-35,860.80-20,721.28

Finding the Fourth Proportional to 26,043.52, 35,860.80 and 20,721.28

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Solution

The fourth proportional to 26,043.52, 35,860.80 and 20,721.28 is: 28,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,043.52 : 35,860.80 = 20,721.28 : x
  2. Step 2: Convert to fraction form
    26,043.52/35,860.80 = 20,721.28/x
  3. Step 3: Cross multiply
    26,043.52x = 35,860.80 × 20,721.28
  4. Step 4: Simplify right side
    26,043.52x = 743,081,677.82
  5. Step 5: Solve for x
    x = 743,081,677.82/26,043.52
  6. Step 6: Final answer
    x = 28,532.31

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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.