Home / 28,564.28-39,419.12-16,458.09

Finding the Fourth Proportional to 28,564.28, 39,419.12 and 16,458.09

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Solution

The fourth proportional to 28,564.28, 39,419.12 and 16,458.09 is: 22,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.28 : 39,419.12 = 16,458.09 : x
  2. Step 2: Convert to fraction form
    28,564.28/39,419.12 = 16,458.09/x
  3. Step 3: Cross multiply
    28,564.28x = 39,419.12 × 16,458.09
  4. Step 4: Simplify right side
    28,564.28x = 648,763,424.68
  5. Step 5: Solve for x
    x = 648,763,424.68/28,564.28
  6. Step 6: Final answer
    x = 22,712.40

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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.