Home / 19,215.52-26,527.44-13,639.84

Finding the Fourth Proportional to 19,215.52, 26,527.44 and 13,639.84

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Solution

The fourth proportional to 19,215.52, 26,527.44 and 13,639.84 is: 18,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.52 : 26,527.44 = 13,639.84 : x
  2. Step 2: Convert to fraction form
    19,215.52/26,527.44 = 13,639.84/x
  3. Step 3: Cross multiply
    19,215.52x = 26,527.44 × 13,639.84
  4. Step 4: Simplify right side
    19,215.52x = 361,830,037.21
  5. Step 5: Solve for x
    x = 361,830,037.21/19,215.52
  6. Step 6: Final answer
    x = 18,830.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.