Home / 48,631.20-72,937.80-13,563.60

Finding the Fourth Proportional to 48,631.20, 72,937.80 and 13,563.60

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Solution

The fourth proportional to 48,631.20, 72,937.80 and 13,563.60 is: 20,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,631.20 : 72,937.80 = 13,563.60 : x
  2. Step 2: Convert to fraction form
    48,631.20/72,937.80 = 13,563.60/x
  3. Step 3: Cross multiply
    48,631.20x = 72,937.80 × 13,563.60
  4. Step 4: Simplify right side
    48,631.20x = 989,299,144.08
  5. Step 5: Solve for x
    x = 989,299,144.08/48,631.20
  6. Step 6: Final answer
    x = 20,342.89

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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.