Home / 19,935.95-27,515.57-11,871.59

Finding the Fourth Proportional to 19,935.95, 27,515.57 and 11,871.59

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Solution

The fourth proportional to 19,935.95, 27,515.57 and 11,871.59 is: 16,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.95 : 27,515.57 = 11,871.59 : x
  2. Step 2: Convert to fraction form
    19,935.95/27,515.57 = 11,871.59/x
  3. Step 3: Cross multiply
    19,935.95x = 27,515.57 × 11,871.59
  4. Step 4: Simplify right side
    19,935.95x = 326,653,368.72
  5. Step 5: Solve for x
    x = 326,653,368.72/19,935.95
  6. Step 6: Final answer
    x = 16,385.15

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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.