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Finding the Fourth Proportional to 47,986.80, 72,001.80 and 16,844.40

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Solution

The fourth proportional to 47,986.80, 72,001.80 and 16,844.40 is: 25,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.80 : 72,001.80 = 16,844.40 : x
  2. Step 2: Convert to fraction form
    47,986.80/72,001.80 = 16,844.40/x
  3. Step 3: Cross multiply
    47,986.80x = 72,001.80 × 16,844.40
  4. Step 4: Simplify right side
    47,986.80x = 1,212,827,119.92
  5. Step 5: Solve for x
    x = 1,212,827,119.92/47,986.80
  6. Step 6: Final answer
    x = 25,274.18

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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.