Home / 26,427.28-39,563.16-17,640.40

Finding the Fourth Proportional to 26,427.28, 39,563.16 and 17,640.40

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Solution

The fourth proportional to 26,427.28, 39,563.16 and 17,640.40 is: 26,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,427.28 : 39,563.16 = 17,640.40 : x
  2. Step 2: Convert to fraction form
    26,427.28/39,563.16 = 17,640.40/x
  3. Step 3: Cross multiply
    26,427.28x = 39,563.16 × 17,640.40
  4. Step 4: Simplify right side
    26,427.28x = 697,909,967.66
  5. Step 5: Solve for x
    x = 697,909,967.66/26,427.28
  6. Step 6: Final answer
    x = 26,408.69

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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.