Home / 26,777.34-40,129.54-10,128.42

Finding the Fourth Proportional to 26,777.34, 40,129.54 and 10,128.42

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Solution

The fourth proportional to 26,777.34, 40,129.54 and 10,128.42 is: 15,178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,777.34 : 40,129.54 = 10,128.42 : x
  2. Step 2: Convert to fraction form
    26,777.34/40,129.54 = 10,128.42/x
  3. Step 3: Cross multiply
    26,777.34x = 40,129.54 × 10,128.42
  4. Step 4: Simplify right side
    26,777.34x = 406,448,810.21
  5. Step 5: Solve for x
    x = 406,448,810.21/26,777.34
  6. Step 6: Final answer
    x = 15,178.83

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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.