Home / 19,996.40-27,594.80-10,921.72

Finding the Fourth Proportional to 19,996.40, 27,594.80 and 10,921.72

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Solution

The fourth proportional to 19,996.40, 27,594.80 and 10,921.72 is: 15,071.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.40 : 27,594.80 = 10,921.72 : x
  2. Step 2: Convert to fraction form
    19,996.40/27,594.80 = 10,921.72/x
  3. Step 3: Cross multiply
    19,996.40x = 27,594.80 × 10,921.72
  4. Step 4: Simplify right side
    19,996.40x = 301,382,541.08
  5. Step 5: Solve for x
    x = 301,382,541.08/19,996.40
  6. Step 6: Final answer
    x = 15,071.84

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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.