Home / 30,600.90-45,901.35-30,309.30

Finding the Fourth Proportional to 30,600.90, 45,901.35 and 30,309.30

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Solution

The fourth proportional to 30,600.90, 45,901.35 and 30,309.30 is: 45,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.90 : 45,901.35 = 30,309.30 : x
  2. Step 2: Convert to fraction form
    30,600.90/45,901.35 = 30,309.30/x
  3. Step 3: Cross multiply
    30,600.90x = 45,901.35 × 30,309.30
  4. Step 4: Simplify right side
    30,600.90x = 1,391,237,787.56
  5. Step 5: Solve for x
    x = 1,391,237,787.56/30,600.90
  6. Step 6: Final answer
    x = 45,463.95

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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.