Home / 30,099.22-45,153.15-9,317.86

Finding the Fourth Proportional to 30,099.22, 45,153.15 and 9,317.86

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Solution

The fourth proportional to 30,099.22, 45,153.15 and 9,317.86 is: 13,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,099.22 : 45,153.15 = 9,317.86 : x
  2. Step 2: Convert to fraction form
    30,099.22/45,153.15 = 9,317.86/x
  3. Step 3: Cross multiply
    30,099.22x = 45,153.15 × 9,317.86
  4. Step 4: Simplify right side
    30,099.22x = 420,730,730.26
  5. Step 5: Solve for x
    x = 420,730,730.26/30,099.22
  6. Step 6: Final answer
    x = 13,978.13

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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.