Home / 17,645.45-26,440.83-13,938.48

Finding the Fourth Proportional to 17,645.45, 26,440.83 and 13,938.48

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Solution

The fourth proportional to 17,645.45, 26,440.83 and 13,938.48 is: 20,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,645.45 : 26,440.83 = 13,938.48 : x
  2. Step 2: Convert to fraction form
    17,645.45/26,440.83 = 13,938.48/x
  3. Step 3: Cross multiply
    17,645.45x = 26,440.83 × 13,938.48
  4. Step 4: Simplify right side
    17,645.45x = 368,544,980.14
  5. Step 5: Solve for x
    x = 368,544,980.14/17,645.45
  6. Step 6: Final answer
    x = 20,886.13

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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.