Home / 18,420.06-25,427.34-13,945.08

Finding the Fourth Proportional to 18,420.06, 25,427.34 and 13,945.08

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Solution

The fourth proportional to 18,420.06, 25,427.34 and 13,945.08 is: 19,250.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.06 : 25,427.34 = 13,945.08 : x
  2. Step 2: Convert to fraction form
    18,420.06/25,427.34 = 13,945.08/x
  3. Step 3: Cross multiply
    18,420.06x = 25,427.34 × 13,945.08
  4. Step 4: Simplify right side
    18,420.06x = 354,586,290.49
  5. Step 5: Solve for x
    x = 354,586,290.49/18,420.06
  6. Step 6: Final answer
    x = 19,250.01

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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.