Home / 30,216.67-45,318.15-11,490.05

Finding the Fourth Proportional to 30,216.67, 45,318.15 and 11,490.05

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Solution

The fourth proportional to 30,216.67, 45,318.15 and 11,490.05 is: 17,232.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.67 : 45,318.15 = 11,490.05 : x
  2. Step 2: Convert to fraction form
    30,216.67/45,318.15 = 11,490.05/x
  3. Step 3: Cross multiply
    30,216.67x = 45,318.15 × 11,490.05
  4. Step 4: Simplify right side
    30,216.67x = 520,707,809.41
  5. Step 5: Solve for x
    x = 520,707,809.41/30,216.67
  6. Step 6: Final answer
    x = 17,232.47

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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.