Home / 26,656.64-39,987.40-19,722.64

Finding the Fourth Proportional to 26,656.64, 39,987.40 and 19,722.64

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Solution

The fourth proportional to 26,656.64, 39,987.40 and 19,722.64 is: 29,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.64 : 39,987.40 = 19,722.64 : x
  2. Step 2: Convert to fraction form
    26,656.64/39,987.40 = 19,722.64/x
  3. Step 3: Cross multiply
    26,656.64x = 39,987.40 × 19,722.64
  4. Step 4: Simplify right side
    26,656.64x = 788,657,001.95
  5. Step 5: Solve for x
    x = 788,657,001.95/26,656.64
  6. Step 6: Final answer
    x = 29,585.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.