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Finding the Fourth Proportional to 40,315.20, 60,487.20 and 16,948.80

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Solution

The fourth proportional to 40,315.20, 60,487.20 and 16,948.80 is: 25,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,315.20 : 60,487.20 = 16,948.80 : x
  2. Step 2: Convert to fraction form
    40,315.20/60,487.20 = 16,948.80/x
  3. Step 3: Cross multiply
    40,315.20x = 60,487.20 × 16,948.80
  4. Step 4: Simplify right side
    40,315.20x = 1,025,185,455.36
  5. Step 5: Solve for x
    x = 1,025,185,455.36/40,315.20
  6. Step 6: Final answer
    x = 25,429.25

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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.