Home / 28,314.80-42,477.30-11,665.73

Finding the Fourth Proportional to 28,314.80, 42,477.30 and 11,665.73

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Solution

The fourth proportional to 28,314.80, 42,477.30 and 11,665.73 is: 17,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.80 : 42,477.30 = 11,665.73 : x
  2. Step 2: Convert to fraction form
    28,314.80/42,477.30 = 11,665.73/x
  3. Step 3: Cross multiply
    28,314.80x = 42,477.30 × 11,665.73
  4. Step 4: Simplify right side
    28,314.80x = 495,528,712.93
  5. Step 5: Solve for x
    x = 495,528,712.93/28,314.80
  6. Step 6: Final answer
    x = 17,500.70

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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.