Home / 20,898.59-28,847.64-14,218.79

Finding the Fourth Proportional to 20,898.59, 28,847.64 and 14,218.79

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Solution

The fourth proportional to 20,898.59, 28,847.64 and 14,218.79 is: 19,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.59 : 28,847.64 = 14,218.79 : x
  2. Step 2: Convert to fraction form
    20,898.59/28,847.64 = 14,218.79/x
  3. Step 3: Cross multiply
    20,898.59x = 28,847.64 × 14,218.79
  4. Step 4: Simplify right side
    20,898.59x = 410,178,535.16
  5. Step 5: Solve for x
    x = 410,178,535.16/20,898.59
  6. Step 6: Final answer
    x = 19,627.09

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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.