Home / 18,371.08-25,329.81-15,533.38

Finding the Fourth Proportional to 18,371.08, 25,329.81 and 15,533.38

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Solution

The fourth proportional to 18,371.08, 25,329.81 and 15,533.38 is: 21,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,371.08 : 25,329.81 = 15,533.38 : x
  2. Step 2: Convert to fraction form
    18,371.08/25,329.81 = 15,533.38/x
  3. Step 3: Cross multiply
    18,371.08x = 25,329.81 × 15,533.38
  4. Step 4: Simplify right side
    18,371.08x = 393,457,564.06
  5. Step 5: Solve for x
    x = 393,457,564.06/18,371.08
  6. Step 6: Final answer
    x = 21,417.23

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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.