Home / 18,302.24-25,238.23-15,658.40

Finding the Fourth Proportional to 18,302.24, 25,238.23 and 15,658.40

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Solution

The fourth proportional to 18,302.24, 25,238.23 and 15,658.40 is: 21,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.24 : 25,238.23 = 15,658.40 : x
  2. Step 2: Convert to fraction form
    18,302.24/25,238.23 = 15,658.40/x
  3. Step 3: Cross multiply
    18,302.24x = 25,238.23 × 15,658.40
  4. Step 4: Simplify right side
    18,302.24x = 395,190,135.29
  5. Step 5: Solve for x
    x = 395,190,135.29/18,302.24
  6. Step 6: Final answer
    x = 21,592.45

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Half scale
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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.