Home / 26,523.90-39,780.99-10,728.09

Finding the Fourth Proportional to 26,523.90, 39,780.99 and 10,728.09

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Solution

The fourth proportional to 26,523.90, 39,780.99 and 10,728.09 is: 16,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,523.90 : 39,780.99 = 10,728.09 : x
  2. Step 2: Convert to fraction form
    26,523.90/39,780.99 = 10,728.09/x
  3. Step 3: Cross multiply
    26,523.90x = 39,780.99 × 10,728.09
  4. Step 4: Simplify right side
    26,523.90x = 426,774,041.01
  5. Step 5: Solve for x
    x = 426,774,041.01/26,523.90
  6. Step 6: Final answer
    x = 16,090.17

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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.