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Finding the Fourth Proportional to 39,479.40, 59,219.10 and 9,898.20

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Solution

The fourth proportional to 39,479.40, 59,219.10 and 9,898.20 is: 14,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.40 : 59,219.10 = 9,898.20 : x
  2. Step 2: Convert to fraction form
    39,479.40/59,219.10 = 9,898.20/x
  3. Step 3: Cross multiply
    39,479.40x = 59,219.10 × 9,898.20
  4. Step 4: Simplify right side
    39,479.40x = 586,162,495.62
  5. Step 5: Solve for x
    x = 586,162,495.62/39,479.40
  6. Step 6: Final answer
    x = 14,847.30

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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.