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Finding the Fourth Proportional to 30,757.40, 46,119.70 and 15,929.54

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Solution

The fourth proportional to 30,757.40, 46,119.70 and 15,929.54 is: 23,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.40 : 46,119.70 = 15,929.54 : x
  2. Step 2: Convert to fraction form
    30,757.40/46,119.70 = 15,929.54/x
  3. Step 3: Cross multiply
    30,757.40x = 46,119.70 × 15,929.54
  4. Step 4: Simplify right side
    30,757.40x = 734,665,681.41
  5. Step 5: Solve for x
    x = 734,665,681.41/30,757.40
  6. Step 6: Final answer
    x = 23,885.82

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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.