Home / 19,330.57-28,957.40-12,736.77

Finding the Fourth Proportional to 19,330.57, 28,957.40 and 12,736.77

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Solution

The fourth proportional to 19,330.57, 28,957.40 and 12,736.77 is: 19,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.57 : 28,957.40 = 12,736.77 : x
  2. Step 2: Convert to fraction form
    19,330.57/28,957.40 = 12,736.77/x
  3. Step 3: Cross multiply
    19,330.57x = 28,957.40 × 12,736.77
  4. Step 4: Simplify right side
    19,330.57x = 368,823,743.60
  5. Step 5: Solve for x
    x = 368,823,743.60/19,330.57
  6. Step 6: Final answer
    x = 19,079.82

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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.