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Finding the Fourth Proportional to 48,483.84, 72,722.48 and 12,942.48

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Solution

The fourth proportional to 48,483.84, 72,722.48 and 12,942.48 is: 19,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,483.84 : 72,722.48 = 12,942.48 : x
  2. Step 2: Convert to fraction form
    48,483.84/72,722.48 = 12,942.48/x
  3. Step 3: Cross multiply
    48,483.84x = 72,722.48 × 12,942.48
  4. Step 4: Simplify right side
    48,483.84x = 941,209,242.95
  5. Step 5: Solve for x
    x = 941,209,242.95/48,483.84
  6. Step 6: Final answer
    x = 19,412.84

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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.