Home / 21,582.45-32,382.99-15,665.87

Finding the Fourth Proportional to 21,582.45, 32,382.99 and 15,665.87

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Solution

The fourth proportional to 21,582.45, 32,382.99 and 15,665.87 is: 23,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.45 : 32,382.99 = 15,665.87 : x
  2. Step 2: Convert to fraction form
    21,582.45/32,382.99 = 15,665.87/x
  3. Step 3: Cross multiply
    21,582.45x = 32,382.99 × 15,665.87
  4. Step 4: Simplify right side
    21,582.45x = 507,307,792.51
  5. Step 5: Solve for x
    x = 507,307,792.51/21,582.45
  6. Step 6: Final answer
    x = 23,505.57

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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.