Home / 26,790.55-36,928.26-21,116.50

Finding the Fourth Proportional to 26,790.55, 36,928.26 and 21,116.50

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Solution

The fourth proportional to 26,790.55, 36,928.26 and 21,116.50 is: 29,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,790.55 : 36,928.26 = 21,116.50 : x
  2. Step 2: Convert to fraction form
    26,790.55/36,928.26 = 21,116.50/x
  3. Step 3: Cross multiply
    26,790.55x = 36,928.26 × 21,116.50
  4. Step 4: Simplify right side
    26,790.55x = 779,795,602.29
  5. Step 5: Solve for x
    x = 779,795,602.29/26,790.55
  6. Step 6: Final answer
    x = 29,107.11

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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.