Home / 30,165.49-45,003.30-28,532.53

Finding the Fourth Proportional to 30,165.49, 45,003.30 and 28,532.53

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Solution

The fourth proportional to 30,165.49, 45,003.30 and 28,532.53 is: 42,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,165.49 : 45,003.30 = 28,532.53 : x
  2. Step 2: Convert to fraction form
    30,165.49/45,003.30 = 28,532.53/x
  3. Step 3: Cross multiply
    30,165.49x = 45,003.30 × 28,532.53
  4. Step 4: Simplify right side
    30,165.49x = 1,284,058,007.35
  5. Step 5: Solve for x
    x = 1,284,058,007.35/30,165.49
  6. Step 6: Final answer
    x = 42,567.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.