Home / 35,664.32-53,428.32-21,628.64

Finding the Fourth Proportional to 35,664.32, 53,428.32 and 21,628.64

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Solution

The fourth proportional to 35,664.32, 53,428.32 and 21,628.64 is: 32,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,664.32 : 53,428.32 = 21,628.64 : x
  2. Step 2: Convert to fraction form
    35,664.32/53,428.32 = 21,628.64/x
  3. Step 3: Cross multiply
    35,664.32x = 53,428.32 × 21,628.64
  4. Step 4: Simplify right side
    35,664.32x = 1,155,581,899.08
  5. Step 5: Solve for x
    x = 1,155,581,899.08/35,664.32
  6. Step 6: Final answer
    x = 32,401.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.