Home / 26,400.80-39,608.54-21,458.20

Finding the Fourth Proportional to 26,400.80, 39,608.54 and 21,458.20

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Solution

The fourth proportional to 26,400.80, 39,608.54 and 21,458.20 is: 32,193.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,400.80 : 39,608.54 = 21,458.20 : x
  2. Step 2: Convert to fraction form
    26,400.80/39,608.54 = 21,458.20/x
  3. Step 3: Cross multiply
    26,400.80x = 39,608.54 × 21,458.20
  4. Step 4: Simplify right side
    26,400.80x = 849,927,973.03
  5. Step 5: Solve for x
    x = 849,927,973.03/26,400.80
  6. Step 6: Final answer
    x = 32,193.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.