Home / 20,148.32-30,228.15-7,002.02

Finding the Fourth Proportional to 20,148.32, 30,228.15 and 7,002.02

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Solution

The fourth proportional to 20,148.32, 30,228.15 and 7,002.02 is: 10,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.32 : 30,228.15 = 7,002.02 : x
  2. Step 2: Convert to fraction form
    20,148.32/30,228.15 = 7,002.02/x
  3. Step 3: Cross multiply
    20,148.32x = 30,228.15 × 7,002.02
  4. Step 4: Simplify right side
    20,148.32x = 211,658,110.86
  5. Step 5: Solve for x
    x = 211,658,110.86/20,148.32
  6. Step 6: Final answer
    x = 10,505.00

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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.