Home / 20,339.74-28,070.45-14,986.62

Finding the Fourth Proportional to 20,339.74, 28,070.45 and 14,986.62

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Solution

The fourth proportional to 20,339.74, 28,070.45 and 14,986.62 is: 20,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,339.74 : 28,070.45 = 14,986.62 : x
  2. Step 2: Convert to fraction form
    20,339.74/28,070.45 = 14,986.62/x
  3. Step 3: Cross multiply
    20,339.74x = 28,070.45 × 14,986.62
  4. Step 4: Simplify right side
    20,339.74x = 420,681,227.59
  5. Step 5: Solve for x
    x = 420,681,227.59/20,339.74
  6. Step 6: Final answer
    x = 20,682.73

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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.