Home / 18,427.19-25,430.57-13,943.16

Finding the Fourth Proportional to 18,427.19, 25,430.57 and 13,943.16

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Solution

The fourth proportional to 18,427.19, 25,430.57 and 13,943.16 is: 19,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.19 : 25,430.57 = 13,943.16 : x
  2. Step 2: Convert to fraction form
    18,427.19/25,430.57 = 13,943.16/x
  3. Step 3: Cross multiply
    18,427.19x = 25,430.57 × 13,943.16
  4. Step 4: Simplify right side
    18,427.19x = 354,582,436.69
  5. Step 5: Solve for x
    x = 354,582,436.69/18,427.19
  6. Step 6: Final answer
    x = 19,242.36

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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.