Home / 18,365.84-25,322.46-15,528.32

Finding the Fourth Proportional to 18,365.84, 25,322.46 and 15,528.32

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Solution

The fourth proportional to 18,365.84, 25,322.46 and 15,528.32 is: 21,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.84 : 25,322.46 = 15,528.32 : x
  2. Step 2: Convert to fraction form
    18,365.84/25,322.46 = 15,528.32/x
  3. Step 3: Cross multiply
    18,365.84x = 25,322.46 × 15,528.32
  4. Step 4: Simplify right side
    18,365.84x = 393,215,262.07
  5. Step 5: Solve for x
    x = 393,215,262.07/18,365.84
  6. Step 6: Final answer
    x = 21,410.14

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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.