Home / 30,100.42-45,157.86-9,323.92

Finding the Fourth Proportional to 30,100.42, 45,157.86 and 9,323.92

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Solution

The fourth proportional to 30,100.42, 45,157.86 and 9,323.92 is: 13,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.42 : 45,157.86 = 9,323.92 : x
  2. Step 2: Convert to fraction form
    30,100.42/45,157.86 = 9,323.92/x
  3. Step 3: Cross multiply
    30,100.42x = 45,157.86 × 9,323.92
  4. Step 4: Simplify right side
    30,100.42x = 421,048,274.01
  5. Step 5: Solve for x
    x = 421,048,274.01/30,100.42
  6. Step 6: Final answer
    x = 13,988.12

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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.