Home / 28,358.87-42,536.75-8,635.77

Finding the Fourth Proportional to 28,358.87, 42,536.75 and 8,635.77

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Solution

The fourth proportional to 28,358.87, 42,536.75 and 8,635.77 is: 12,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.87 : 42,536.75 = 8,635.77 : x
  2. Step 2: Convert to fraction form
    28,358.87/42,536.75 = 8,635.77/x
  3. Step 3: Cross multiply
    28,358.87x = 42,536.75 × 8,635.77
  4. Step 4: Simplify right side
    28,358.87x = 367,337,546.37
  5. Step 5: Solve for x
    x = 367,337,546.37/28,358.87
  6. Step 6: Final answer
    x = 12,953.18

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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.