Home / 28,582.79-39,448.17-16,649.87

Finding the Fourth Proportional to 28,582.79, 39,448.17 and 16,649.87

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Solution

The fourth proportional to 28,582.79, 39,448.17 and 16,649.87 is: 22,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.79 : 39,448.17 = 16,649.87 : x
  2. Step 2: Convert to fraction form
    28,582.79/39,448.17 = 16,649.87/x
  3. Step 3: Cross multiply
    28,582.79x = 39,448.17 × 16,649.87
  4. Step 4: Simplify right side
    28,582.79x = 656,806,705.00
  5. Step 5: Solve for x
    x = 656,806,705.00/28,582.79
  6. Step 6: Final answer
    x = 22,979.10

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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.