Home / 20,347.59-30,505.83-14,089.64

Finding the Fourth Proportional to 20,347.59, 30,505.83 and 14,089.64

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Solution

The fourth proportional to 20,347.59, 30,505.83 and 14,089.64 is: 21,123.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.59 : 30,505.83 = 14,089.64 : x
  2. Step 2: Convert to fraction form
    20,347.59/30,505.83 = 14,089.64/x
  3. Step 3: Cross multiply
    20,347.59x = 30,505.83 × 14,089.64
  4. Step 4: Simplify right side
    20,347.59x = 429,816,010.07
  5. Step 5: Solve for x
    x = 429,816,010.07/20,347.59
  6. Step 6: Final answer
    x = 21,123.68

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1.5x scale

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.