Home / 20,950.56-28,881.36-14,643.36

Finding the Fourth Proportional to 20,950.56, 28,881.36 and 14,643.36

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Solution

The fourth proportional to 20,950.56, 28,881.36 and 14,643.36 is: 20,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.56 : 28,881.36 = 14,643.36 : x
  2. Step 2: Convert to fraction form
    20,950.56/28,881.36 = 14,643.36/x
  3. Step 3: Cross multiply
    20,950.56x = 28,881.36 × 14,643.36
  4. Step 4: Simplify right side
    20,950.56x = 422,920,151.77
  5. Step 5: Solve for x
    x = 422,920,151.77/20,950.56
  6. Step 6: Final answer
    x = 20,186.58

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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.