Home / 48,303.60-72,455.40-20,218.80

Finding the Fourth Proportional to 48,303.60, 72,455.40 and 20,218.80

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Solution

The fourth proportional to 48,303.60, 72,455.40 and 20,218.80 is: 30,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,303.60 : 72,455.40 = 20,218.80 : x
  2. Step 2: Convert to fraction form
    48,303.60/72,455.40 = 20,218.80/x
  3. Step 3: Cross multiply
    48,303.60x = 72,455.40 × 20,218.80
  4. Step 4: Simplify right side
    48,303.60x = 1,464,961,241.52
  5. Step 5: Solve for x
    x = 1,464,961,241.52/48,303.60
  6. Step 6: Final answer
    x = 30,328.20

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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.