Home / 26,560.24-39,864.96-13,421.80

Finding the Fourth Proportional to 26,560.24, 39,864.96 and 13,421.80

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Solution

The fourth proportional to 26,560.24, 39,864.96 and 13,421.80 is: 20,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,560.24 : 39,864.96 = 13,421.80 : x
  2. Step 2: Convert to fraction form
    26,560.24/39,864.96 = 13,421.80/x
  3. Step 3: Cross multiply
    26,560.24x = 39,864.96 × 13,421.80
  4. Step 4: Simplify right side
    26,560.24x = 535,059,520.13
  5. Step 5: Solve for x
    x = 535,059,520.13/26,560.24
  6. Step 6: Final answer
    x = 20,145.13

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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.