Home / 20,150.10-30,225.15-20,004.30

Finding the Fourth Proportional to 20,150.10, 30,225.15 and 20,004.30

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Solution

The fourth proportional to 20,150.10, 30,225.15 and 20,004.30 is: 30,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.10 : 30,225.15 = 20,004.30 : x
  2. Step 2: Convert to fraction form
    20,150.10/30,225.15 = 20,004.30/x
  3. Step 3: Cross multiply
    20,150.10x = 30,225.15 × 20,004.30
  4. Step 4: Simplify right side
    20,150.10x = 604,632,968.15
  5. Step 5: Solve for x
    x = 604,632,968.15/20,150.10
  6. Step 6: Final answer
    x = 30,006.45

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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.