Home / 28,508.85-42,763.28-16,699.05

Finding the Fourth Proportional to 28,508.85, 42,763.28 and 16,699.05

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Solution

The fourth proportional to 28,508.85, 42,763.28 and 16,699.05 is: 25,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.85 : 42,763.28 = 16,699.05 : x
  2. Step 2: Convert to fraction form
    28,508.85/42,763.28 = 16,699.05/x
  3. Step 3: Cross multiply
    28,508.85x = 42,763.28 × 16,699.05
  4. Step 4: Simplify right side
    28,508.85x = 714,106,067.39
  5. Step 5: Solve for x
    x = 714,106,067.39/28,508.85
  6. Step 6: Final answer
    x = 25,048.58

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1.5x scale

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.