Home / 20,284.85-30,400.76-14,681.39

Finding the Fourth Proportional to 20,284.85, 30,400.76 and 14,681.39

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Solution

The fourth proportional to 20,284.85, 30,400.76 and 14,681.39 is: 22,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.85 : 30,400.76 = 14,681.39 : x
  2. Step 2: Convert to fraction form
    20,284.85/30,400.76 = 14,681.39/x
  3. Step 3: Cross multiply
    20,284.85x = 30,400.76 × 14,681.39
  4. Step 4: Simplify right side
    20,284.85x = 446,325,261.85
  5. Step 5: Solve for x
    x = 446,325,261.85/20,284.85
  6. Step 6: Final answer
    x = 22,002.89

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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.