Home / 26,005.52-39,009.90-10,421.12

Finding the Fourth Proportional to 26,005.52, 39,009.90 and 10,421.12

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Solution

The fourth proportional to 26,005.52, 39,009.90 and 10,421.12 is: 15,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,005.52 : 39,009.90 = 10,421.12 : x
  2. Step 2: Convert to fraction form
    26,005.52/39,009.90 = 10,421.12/x
  3. Step 3: Cross multiply
    26,005.52x = 39,009.90 × 10,421.12
  4. Step 4: Simplify right side
    26,005.52x = 406,526,849.09
  5. Step 5: Solve for x
    x = 406,526,849.09/26,005.52
  6. Step 6: Final answer
    x = 15,632.33

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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.