Home / 19,326.43-28,988.70-11,325.66

Finding the Fourth Proportional to 19,326.43, 28,988.70 and 11,325.66

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Solution

The fourth proportional to 19,326.43, 28,988.70 and 11,325.66 is: 16,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.43 : 28,988.70 = 11,325.66 : x
  2. Step 2: Convert to fraction form
    19,326.43/28,988.70 = 11,325.66/x
  3. Step 3: Cross multiply
    19,326.43x = 28,988.70 × 11,325.66
  4. Step 4: Simplify right side
    19,326.43x = 328,316,015.10
  5. Step 5: Solve for x
    x = 328,316,015.10/19,326.43
  6. Step 6: Final answer
    x = 16,987.93

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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.