Home / 30,313.98-45,442.85-15,490.22

Finding the Fourth Proportional to 30,313.98, 45,442.85 and 15,490.22

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Solution

The fourth proportional to 30,313.98, 45,442.85 and 15,490.22 is: 23,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.98 : 45,442.85 = 15,490.22 : x
  2. Step 2: Convert to fraction form
    30,313.98/45,442.85 = 15,490.22/x
  3. Step 3: Cross multiply
    30,313.98x = 45,442.85 × 15,490.22
  4. Step 4: Simplify right side
    30,313.98x = 703,919,439.26
  5. Step 5: Solve for x
    x = 703,919,439.26/30,313.98
  6. Step 6: Final answer
    x = 23,220.95

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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.