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Finding the Fourth Proportional to 40,567.50, 60,860.97 and 12,865.50

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Solution

The fourth proportional to 40,567.50, 60,860.97 and 12,865.50 is: 19,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,567.50 : 60,860.97 = 12,865.50 : x
  2. Step 2: Convert to fraction form
    40,567.50/60,860.97 = 12,865.50/x
  3. Step 3: Cross multiply
    40,567.50x = 60,860.97 × 12,865.50
  4. Step 4: Simplify right side
    40,567.50x = 783,006,809.54
  5. Step 5: Solve for x
    x = 783,006,809.54/40,567.50
  6. Step 6: Final answer
    x = 19,301.33

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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.