Home / 19,854.59-27,402.44-11,899.31

Finding the Fourth Proportional to 19,854.59, 27,402.44 and 11,899.31

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Solution

The fourth proportional to 19,854.59, 27,402.44 and 11,899.31 is: 16,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.59 : 27,402.44 = 11,899.31 : x
  2. Step 2: Convert to fraction form
    19,854.59/27,402.44 = 11,899.31/x
  3. Step 3: Cross multiply
    19,854.59x = 27,402.44 × 11,899.31
  4. Step 4: Simplify right side
    19,854.59x = 326,069,931.81
  5. Step 5: Solve for x
    x = 326,069,931.81/19,854.59
  6. Step 6: Final answer
    x = 16,422.90

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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.