Home / 30,219.74-45,344.46-13,591.52

Finding the Fourth Proportional to 30,219.74, 45,344.46 and 13,591.52

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Solution

The fourth proportional to 30,219.74, 45,344.46 and 13,591.52 is: 20,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.74 : 45,344.46 = 13,591.52 : x
  2. Step 2: Convert to fraction form
    30,219.74/45,344.46 = 13,591.52/x
  3. Step 3: Cross multiply
    30,219.74x = 45,344.46 × 13,591.52
  4. Step 4: Simplify right side
    30,219.74x = 616,299,840.30
  5. Step 5: Solve for x
    x = 616,299,840.30/30,219.74
  6. Step 6: Final answer
    x = 20,393.95

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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.