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Finding the Fourth Proportional to 39,485.40, 59,228.10 and 29,117.40

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Solution

The fourth proportional to 39,485.40, 59,228.10 and 29,117.40 is: 43,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,485.40 : 59,228.10 = 29,117.40 : x
  2. Step 2: Convert to fraction form
    39,485.40/59,228.10 = 29,117.40/x
  3. Step 3: Cross multiply
    39,485.40x = 59,228.10 × 29,117.40
  4. Step 4: Simplify right side
    39,485.40x = 1,724,568,278.94
  5. Step 5: Solve for x
    x = 1,724,568,278.94/39,485.40
  6. Step 6: Final answer
    x = 43,676.10

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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.