Home / 30,515.43-45,750.96-12,751.17

Finding the Fourth Proportional to 30,515.43, 45,750.96 and 12,751.17

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Solution

The fourth proportional to 30,515.43, 45,750.96 and 12,751.17 is: 19,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,515.43 : 45,750.96 = 12,751.17 : x
  2. Step 2: Convert to fraction form
    30,515.43/45,750.96 = 12,751.17/x
  3. Step 3: Cross multiply
    30,515.43x = 45,750.96 × 12,751.17
  4. Step 4: Simplify right side
    30,515.43x = 583,378,268.62
  5. Step 5: Solve for x
    x = 583,378,268.62/30,515.43
  6. Step 6: Final answer
    x = 19,117.48

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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.