Home / 19,322.20-28,934.70-12,712.60

Finding the Fourth Proportional to 19,322.20, 28,934.70 and 12,712.60

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Solution

The fourth proportional to 19,322.20, 28,934.70 and 12,712.60 is: 19,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.20 : 28,934.70 = 12,712.60 : x
  2. Step 2: Convert to fraction form
    19,322.20/28,934.70 = 12,712.60/x
  3. Step 3: Cross multiply
    19,322.20x = 28,934.70 × 12,712.60
  4. Step 4: Simplify right side
    19,322.20x = 367,835,267.22
  5. Step 5: Solve for x
    x = 367,835,267.22/19,322.20
  6. Step 6: Final answer
    x = 19,036.92

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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.