Home / 19,827.82-27,357.90-13,455.28

Finding the Fourth Proportional to 19,827.82, 27,357.90 and 13,455.28

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Solution

The fourth proportional to 19,827.82, 27,357.90 and 13,455.28 is: 18,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,827.82 : 27,357.90 = 13,455.28 : x
  2. Step 2: Convert to fraction form
    19,827.82/27,357.90 = 13,455.28/x
  3. Step 3: Cross multiply
    19,827.82x = 27,357.90 × 13,455.28
  4. Step 4: Simplify right side
    19,827.82x = 368,108,204.71
  5. Step 5: Solve for x
    x = 368,108,204.71/19,827.82
  6. Step 6: Final answer
    x = 18,565.24

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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.