Home / 30,750.87-46,132.79-9,972.75

Finding the Fourth Proportional to 30,750.87, 46,132.79 and 9,972.75

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Solution

The fourth proportional to 30,750.87, 46,132.79 and 9,972.75 is: 14,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,750.87 : 46,132.79 = 9,972.75 : x
  2. Step 2: Convert to fraction form
    30,750.87/46,132.79 = 9,972.75/x
  3. Step 3: Cross multiply
    30,750.87x = 46,132.79 × 9,972.75
  4. Step 4: Simplify right side
    30,750.87x = 460,070,731.61
  5. Step 5: Solve for x
    x = 460,070,731.61/30,750.87
  6. Step 6: Final answer
    x = 14,961.23

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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.