Home / 26,985.73-37,250.55-20,290.79

Finding the Fourth Proportional to 26,985.73, 37,250.55 and 20,290.79

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Solution

The fourth proportional to 26,985.73, 37,250.55 and 20,290.79 is: 28,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.73 : 37,250.55 = 20,290.79 : x
  2. Step 2: Convert to fraction form
    26,985.73/37,250.55 = 20,290.79/x
  3. Step 3: Cross multiply
    26,985.73x = 37,250.55 × 20,290.79
  4. Step 4: Simplify right side
    26,985.73x = 755,843,087.43
  5. Step 5: Solve for x
    x = 755,843,087.43/26,985.73
  6. Step 6: Final answer
    x = 28,009.00

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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.