Home / 26,440.21-36,493.35-20,686.31

Finding the Fourth Proportional to 26,440.21, 36,493.35 and 20,686.31

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Solution

The fourth proportional to 26,440.21, 36,493.35 and 20,686.31 is: 28,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,440.21 : 36,493.35 = 20,686.31 : x
  2. Step 2: Convert to fraction form
    26,440.21/36,493.35 = 20,686.31/x
  3. Step 3: Cross multiply
    26,440.21x = 36,493.35 × 20,686.31
  4. Step 4: Simplify right side
    26,440.21x = 754,912,751.04
  5. Step 5: Solve for x
    x = 754,912,751.04/26,440.21
  6. Step 6: Final answer
    x = 28,551.70

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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.