Home / 19,989.86-29,858.91-14,677.88

Finding the Fourth Proportional to 19,989.86, 29,858.91 and 14,677.88

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Solution

The fourth proportional to 19,989.86, 29,858.91 and 14,677.88 is: 21,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.86 : 29,858.91 = 14,677.88 : x
  2. Step 2: Convert to fraction form
    19,989.86/29,858.91 = 14,677.88/x
  3. Step 3: Cross multiply
    19,989.86x = 29,858.91 × 14,677.88
  4. Step 4: Simplify right side
    19,989.86x = 438,265,348.62
  5. Step 5: Solve for x
    x = 438,265,348.62/19,989.86
  6. Step 6: Final answer
    x = 21,924.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.