Home / 28,518.80-39,345.90-16,579.40

Finding the Fourth Proportional to 28,518.80, 39,345.90 and 16,579.40

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Solution

The fourth proportional to 28,518.80, 39,345.90 and 16,579.40 is: 22,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.80 : 39,345.90 = 16,579.40 : x
  2. Step 2: Convert to fraction form
    28,518.80/39,345.90 = 16,579.40/x
  3. Step 3: Cross multiply
    28,518.80x = 39,345.90 × 16,579.40
  4. Step 4: Simplify right side
    28,518.80x = 652,331,414.46
  5. Step 5: Solve for x
    x = 652,331,414.46/28,518.80
  6. Step 6: Final answer
    x = 22,873.73

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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.