Home / 39,884.40-59,812.20-20,156.40

Finding the Fourth Proportional to 39,884.40, 59,812.20 and 20,156.40

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Solution

The fourth proportional to 39,884.40, 59,812.20 and 20,156.40 is: 30,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,884.40 : 59,812.20 = 20,156.40 : x
  2. Step 2: Convert to fraction form
    39,884.40/59,812.20 = 20,156.40/x
  3. Step 3: Cross multiply
    39,884.40x = 59,812.20 × 20,156.40
  4. Step 4: Simplify right side
    39,884.40x = 1,205,598,628.08
  5. Step 5: Solve for x
    x = 1,205,598,628.08/39,884.40
  6. Step 6: Final answer
    x = 30,227.32

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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.