Home / 18,328.28-25,299.12-13,038.44

Finding the Fourth Proportional to 18,328.28, 25,299.12 and 13,038.44

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Solution

The fourth proportional to 18,328.28, 25,299.12 and 13,038.44 is: 17,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.28 : 25,299.12 = 13,038.44 : x
  2. Step 2: Convert to fraction form
    18,328.28/25,299.12 = 13,038.44/x
  3. Step 3: Cross multiply
    18,328.28x = 25,299.12 × 13,038.44
  4. Step 4: Simplify right side
    18,328.28x = 329,861,058.17
  5. Step 5: Solve for x
    x = 329,861,058.17/18,328.28
  6. Step 6: Final answer
    x = 17,997.38

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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.