Home / 26,557.90-39,861.45-21,194.28

Finding the Fourth Proportional to 26,557.90, 39,861.45 and 21,194.28

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Solution

The fourth proportional to 26,557.90, 39,861.45 and 21,194.28 is: 31,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,557.90 : 39,861.45 = 21,194.28 : x
  2. Step 2: Convert to fraction form
    26,557.90/39,861.45 = 21,194.28/x
  3. Step 3: Cross multiply
    26,557.90x = 39,861.45 × 21,194.28
  4. Step 4: Simplify right side
    26,557.90x = 844,834,732.51
  5. Step 5: Solve for x
    x = 844,834,732.51/26,557.90
  6. Step 6: Final answer
    x = 31,811.05

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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.