Home / 20,156.04-30,200.58-7,001.28

Finding the Fourth Proportional to 20,156.04, 30,200.58 and 7,001.28

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Solution

The fourth proportional to 20,156.04, 30,200.58 and 7,001.28 is: 10,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.04 : 30,200.58 = 7,001.28 : x
  2. Step 2: Convert to fraction form
    20,156.04/30,200.58 = 7,001.28/x
  3. Step 3: Cross multiply
    20,156.04x = 30,200.58 × 7,001.28
  4. Step 4: Simplify right side
    20,156.04x = 211,442,716.74
  5. Step 5: Solve for x
    x = 211,442,716.74/20,156.04
  6. Step 6: Final answer
    x = 10,490.29

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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.