Home / 19,681.68-27,164.52-12,955.44

Finding the Fourth Proportional to 19,681.68, 27,164.52 and 12,955.44

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Solution

The fourth proportional to 19,681.68, 27,164.52 and 12,955.44 is: 17,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.68 : 27,164.52 = 12,955.44 : x
  2. Step 2: Convert to fraction form
    19,681.68/27,164.52 = 12,955.44/x
  3. Step 3: Cross multiply
    19,681.68x = 27,164.52 × 12,955.44
  4. Step 4: Simplify right side
    19,681.68x = 351,928,308.99
  5. Step 5: Solve for x
    x = 351,928,308.99/19,681.68
  6. Step 6: Final answer
    x = 17,881.01

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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.