Home / 28,776.48-39,712.32-16,201.68

Finding the Fourth Proportional to 28,776.48, 39,712.32 and 16,201.68

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Solution

The fourth proportional to 28,776.48, 39,712.32 and 16,201.68 is: 22,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.48 : 39,712.32 = 16,201.68 : x
  2. Step 2: Convert to fraction form
    28,776.48/39,712.32 = 16,201.68/x
  3. Step 3: Cross multiply
    28,776.48x = 39,712.32 × 16,201.68
  4. Step 4: Simplify right side
    28,776.48x = 643,406,300.70
  5. Step 5: Solve for x
    x = 643,406,300.70/28,776.48
  6. Step 6: Final answer
    x = 22,358.76

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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.