Home / 30,099.28-45,148.80-9,322.72

Finding the Fourth Proportional to 30,099.28, 45,148.80 and 9,322.72

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Solution

The fourth proportional to 30,099.28, 45,148.80 and 9,322.72 is: 13,984.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,099.28 : 45,148.80 = 9,322.72 : x
  2. Step 2: Convert to fraction form
    30,099.28/45,148.80 = 9,322.72/x
  3. Step 3: Cross multiply
    30,099.28x = 45,148.80 × 9,322.72
  4. Step 4: Simplify right side
    30,099.28x = 420,909,620.74
  5. Step 5: Solve for x
    x = 420,909,620.74/30,099.28
  6. Step 6: Final answer
    x = 13,984.04

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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.