Home / 18,688.43-25,901.35-18,338.51

Finding the Fourth Proportional to 18,688.43, 25,901.35 and 18,338.51

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Solution

The fourth proportional to 18,688.43, 25,901.35 and 18,338.51 is: 25,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.43 : 25,901.35 = 18,338.51 : x
  2. Step 2: Convert to fraction form
    18,688.43/25,901.35 = 18,338.51/x
  3. Step 3: Cross multiply
    18,688.43x = 25,901.35 × 18,338.51
  4. Step 4: Simplify right side
    18,688.43x = 474,992,165.99
  5. Step 5: Solve for x
    x = 474,992,165.99/18,688.43
  6. Step 6: Final answer
    x = 25,416.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.