Home / 28,513.04-42,769.68-11,862.68

Finding the Fourth Proportional to 28,513.04, 42,769.68 and 11,862.68

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Solution

The fourth proportional to 28,513.04, 42,769.68 and 11,862.68 is: 17,794.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.04 : 42,769.68 = 11,862.68 : x
  2. Step 2: Convert to fraction form
    28,513.04/42,769.68 = 11,862.68/x
  3. Step 3: Cross multiply
    28,513.04x = 42,769.68 × 11,862.68
  4. Step 4: Simplify right side
    28,513.04x = 507,363,027.54
  5. Step 5: Solve for x
    x = 507,363,027.54/28,513.04
  6. Step 6: Final answer
    x = 17,794.07

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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.