Home / 18,945.40-26,169.24-15,373.60

Finding the Fourth Proportional to 18,945.40, 26,169.24 and 15,373.60

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Solution

The fourth proportional to 18,945.40, 26,169.24 and 15,373.60 is: 21,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.40 : 26,169.24 = 15,373.60 : x
  2. Step 2: Convert to fraction form
    18,945.40/26,169.24 = 15,373.60/x
  3. Step 3: Cross multiply
    18,945.40x = 26,169.24 × 15,373.60
  4. Step 4: Simplify right side
    18,945.40x = 402,315,428.06
  5. Step 5: Solve for x
    x = 402,315,428.06/18,945.40
  6. Step 6: Final answer
    x = 21,235.52

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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.