Home / 19,681.32-27,171.52-12,964.48

Finding the Fourth Proportional to 19,681.32, 27,171.52 and 12,964.48

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Solution

The fourth proportional to 19,681.32, 27,171.52 and 12,964.48 is: 17,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.32 : 27,171.52 = 12,964.48 : x
  2. Step 2: Convert to fraction form
    19,681.32/27,171.52 = 12,964.48/x
  3. Step 3: Cross multiply
    19,681.32x = 27,171.52 × 12,964.48
  4. Step 4: Simplify right side
    19,681.32x = 352,264,627.61
  5. Step 5: Solve for x
    x = 352,264,627.61/19,681.32
  6. Step 6: Final answer
    x = 17,898.42

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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.