Home / 26,208.80-39,313.20-13,086.80

Finding the Fourth Proportional to 26,208.80, 39,313.20 and 13,086.80

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Solution

The fourth proportional to 26,208.80, 39,313.20 and 13,086.80 is: 19,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,208.80 : 39,313.20 = 13,086.80 : x
  2. Step 2: Convert to fraction form
    26,208.80/39,313.20 = 13,086.80/x
  3. Step 3: Cross multiply
    26,208.80x = 39,313.20 × 13,086.80
  4. Step 4: Simplify right side
    26,208.80x = 514,483,985.76
  5. Step 5: Solve for x
    x = 514,483,985.76/26,208.80
  6. Step 6: Final answer
    x = 19,630.20

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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.