Home / 28,462.77-42,694.20-7,686.27

Finding the Fourth Proportional to 28,462.77, 42,694.20 and 7,686.27

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Solution

The fourth proportional to 28,462.77, 42,694.20 and 7,686.27 is: 11,529.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.77 : 42,694.20 = 7,686.27 : x
  2. Step 2: Convert to fraction form
    28,462.77/42,694.20 = 7,686.27/x
  3. Step 3: Cross multiply
    28,462.77x = 42,694.20 × 7,686.27
  4. Step 4: Simplify right side
    28,462.77x = 328,159,148.63
  5. Step 5: Solve for x
    x = 328,159,148.63/28,462.77
  6. Step 6: Final answer
    x = 11,529.42

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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.