Home / 26,295.69-39,455.09-13,812.81

Finding the Fourth Proportional to 26,295.69, 39,455.09 and 13,812.81

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Solution

The fourth proportional to 26,295.69, 39,455.09 and 13,812.81 is: 20,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,295.69 : 39,455.09 = 13,812.81 : x
  2. Step 2: Convert to fraction form
    26,295.69/39,455.09 = 13,812.81/x
  3. Step 3: Cross multiply
    26,295.69x = 39,455.09 × 13,812.81
  4. Step 4: Simplify right side
    26,295.69x = 544,985,661.70
  5. Step 5: Solve for x
    x = 544,985,661.70/26,295.69
  6. Step 6: Final answer
    x = 20,725.28

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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.