Home / 26,379.72-36,405.18-15,769.13

Finding the Fourth Proportional to 26,379.72, 36,405.18 and 15,769.13

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Solution

The fourth proportional to 26,379.72, 36,405.18 and 15,769.13 is: 21,762.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.72 : 36,405.18 = 15,769.13 : x
  2. Step 2: Convert to fraction form
    26,379.72/36,405.18 = 15,769.13/x
  3. Step 3: Cross multiply
    26,379.72x = 36,405.18 × 15,769.13
  4. Step 4: Simplify right side
    26,379.72x = 574,077,834.07
  5. Step 5: Solve for x
    x = 574,077,834.07/26,379.72
  6. Step 6: Final answer
    x = 21,762.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.