Home / 30,654.28-42,292.02-20,050.12

Finding the Fourth Proportional to 30,654.28, 42,292.02 and 20,050.12

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Solution

The fourth proportional to 30,654.28, 42,292.02 and 20,050.12 is: 27,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,654.28 : 42,292.02 = 20,050.12 : x
  2. Step 2: Convert to fraction form
    30,654.28/42,292.02 = 20,050.12/x
  3. Step 3: Cross multiply
    30,654.28x = 42,292.02 × 20,050.12
  4. Step 4: Simplify right side
    30,654.28x = 847,960,076.04
  5. Step 5: Solve for x
    x = 847,960,076.04/30,654.28
  6. Step 6: Final answer
    x = 27,662.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.