Home / 26,388.80-39,573.60-8,859.20

Finding the Fourth Proportional to 26,388.80, 39,573.60 and 8,859.20

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Solution

The fourth proportional to 26,388.80, 39,573.60 and 8,859.20 is: 13,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,388.80 : 39,573.60 = 8,859.20 : x
  2. Step 2: Convert to fraction form
    26,388.80/39,573.60 = 8,859.20/x
  3. Step 3: Cross multiply
    26,388.80x = 39,573.60 × 8,859.20
  4. Step 4: Simplify right side
    26,388.80x = 350,590,437.12
  5. Step 5: Solve for x
    x = 350,590,437.12/26,388.80
  6. Step 6: Final answer
    x = 13,285.58

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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.