Home / 30,320.27-45,485.26-12,792.68

Finding the Fourth Proportional to 30,320.27, 45,485.26 and 12,792.68

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Solution

The fourth proportional to 30,320.27, 45,485.26 and 12,792.68 is: 19,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.27 : 45,485.26 = 12,792.68 : x
  2. Step 2: Convert to fraction form
    30,320.27/45,485.26 = 12,792.68/x
  3. Step 3: Cross multiply
    30,320.27x = 45,485.26 × 12,792.68
  4. Step 4: Simplify right side
    30,320.27x = 581,878,116.49
  5. Step 5: Solve for x
    x = 581,878,116.49/30,320.27
  6. Step 6: Final answer
    x = 19,191.06

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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.