Home / 19,398.08-26,731.80-13,799.36

Finding the Fourth Proportional to 19,398.08, 26,731.80 and 13,799.36

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Solution

The fourth proportional to 19,398.08, 26,731.80 and 13,799.36 is: 19,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.08 : 26,731.80 = 13,799.36 : x
  2. Step 2: Convert to fraction form
    19,398.08/26,731.80 = 13,799.36/x
  3. Step 3: Cross multiply
    19,398.08x = 26,731.80 × 13,799.36
  4. Step 4: Simplify right side
    19,398.08x = 368,881,731.65
  5. Step 5: Solve for x
    x = 368,881,731.65/19,398.08
  6. Step 6: Final answer
    x = 19,016.40

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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.