Home / 26,430.26-39,645.25-12,400.11

Finding the Fourth Proportional to 26,430.26, 39,645.25 and 12,400.11

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Solution

The fourth proportional to 26,430.26, 39,645.25 and 12,400.11 is: 18,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.26 : 39,645.25 = 12,400.11 : x
  2. Step 2: Convert to fraction form
    26,430.26/39,645.25 = 12,400.11/x
  3. Step 3: Cross multiply
    26,430.26x = 39,645.25 × 12,400.11
  4. Step 4: Simplify right side
    26,430.26x = 491,605,429.98
  5. Step 5: Solve for x
    x = 491,605,429.98/26,430.26
  6. Step 6: Final answer
    x = 18,600.10

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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.