Home / 20,180.16-30,253.20-9,644.40

Finding the Fourth Proportional to 20,180.16, 30,253.20 and 9,644.40

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Solution

The fourth proportional to 20,180.16, 30,253.20 and 9,644.40 is: 14,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.16 : 30,253.20 = 9,644.40 : x
  2. Step 2: Convert to fraction form
    20,180.16/30,253.20 = 9,644.40/x
  3. Step 3: Cross multiply
    20,180.16x = 30,253.20 × 9,644.40
  4. Step 4: Simplify right side
    20,180.16x = 291,773,962.08
  5. Step 5: Solve for x
    x = 291,773,962.08/20,180.16
  6. Step 6: Final answer
    x = 14,458.46

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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.