Home / 30,188.89-45,268.61-9,124.86

Finding the Fourth Proportional to 30,188.89, 45,268.61 and 9,124.86

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Solution

The fourth proportional to 30,188.89, 45,268.61 and 9,124.86 is: 13,682.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.89 : 45,268.61 = 9,124.86 : x
  2. Step 2: Convert to fraction form
    30,188.89/45,268.61 = 9,124.86/x
  3. Step 3: Cross multiply
    30,188.89x = 45,268.61 × 9,124.86
  4. Step 4: Simplify right side
    30,188.89x = 413,069,683.02
  5. Step 5: Solve for x
    x = 413,069,683.02/30,188.89
  6. Step 6: Final answer
    x = 13,682.84

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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.