Home / 30,185.13-45,280.19-9,408.63

Finding the Fourth Proportional to 30,185.13, 45,280.19 and 9,408.63

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Solution

The fourth proportional to 30,185.13, 45,280.19 and 9,408.63 is: 14,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.13 : 45,280.19 = 9,408.63 : x
  2. Step 2: Convert to fraction form
    30,185.13/45,280.19 = 9,408.63/x
  3. Step 3: Cross multiply
    30,185.13x = 45,280.19 × 9,408.63
  4. Step 4: Simplify right side
    30,185.13x = 426,024,554.04
  5. Step 5: Solve for x
    x = 426,024,554.04/30,185.13
  6. Step 6: Final answer
    x = 14,113.72

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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.