Home / 27,129.78-40,646.07-9,588.42

Finding the Fourth Proportional to 27,129.78, 40,646.07 and 9,588.42

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Solution

The fourth proportional to 27,129.78, 40,646.07 and 9,588.42 is: 14,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.78 : 40,646.07 = 9,588.42 : x
  2. Step 2: Convert to fraction form
    27,129.78/40,646.07 = 9,588.42/x
  3. Step 3: Cross multiply
    27,129.78x = 40,646.07 × 9,588.42
  4. Step 4: Simplify right side
    27,129.78x = 389,731,590.51
  5. Step 5: Solve for x
    x = 389,731,590.51/27,129.78
  6. Step 6: Final answer
    x = 14,365.45

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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.