Home / 28,511.08-42,755.99-9,785.81

Finding the Fourth Proportional to 28,511.08, 42,755.99 and 9,785.81

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Solution

The fourth proportional to 28,511.08, 42,755.99 and 9,785.81 is: 14,675.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.08 : 42,755.99 = 9,785.81 : x
  2. Step 2: Convert to fraction form
    28,511.08/42,755.99 = 9,785.81/x
  3. Step 3: Cross multiply
    28,511.08x = 42,755.99 × 9,785.81
  4. Step 4: Simplify right side
    28,511.08x = 418,401,994.50
  5. Step 5: Solve for x
    x = 418,401,994.50/28,511.08
  6. Step 6: Final answer
    x = 14,675.07

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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.