Home / 20,677.36-28,522.59-13,008.43

Finding the Fourth Proportional to 20,677.36, 28,522.59 and 13,008.43

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Solution

The fourth proportional to 20,677.36, 28,522.59 and 13,008.43 is: 17,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.36 : 28,522.59 = 13,008.43 : x
  2. Step 2: Convert to fraction form
    20,677.36/28,522.59 = 13,008.43/x
  3. Step 3: Cross multiply
    20,677.36x = 28,522.59 × 13,008.43
  4. Step 4: Simplify right side
    20,677.36x = 371,034,115.43
  5. Step 5: Solve for x
    x = 371,034,115.43/20,677.36
  6. Step 6: Final answer
    x = 17,943.98

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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.